diff --git a/packages/backend/src/server/api/EndpointsModule.ts b/packages/backend/src/server/api/EndpointsModule.ts
index fef8214bc1..15a2621da2 100644
--- a/packages/backend/src/server/api/EndpointsModule.ts
+++ b/packages/backend/src/server/api/EndpointsModule.ts
@@ -219,6 +219,7 @@ import * as ep___i_readAllUnreadNotes from './endpoints/i/read-all-unread-notes.
 import * as ep___i_readAnnouncement from './endpoints/i/read-announcement.js';
 import * as ep___i_regenerateToken from './endpoints/i/regenerate-token.js';
 import * as ep___i_registry_getAll from './endpoints/i/registry/get-all.js';
+import * as ep___i_registry_getUnsecure from './endpoints/i/registry/get-unsecure.js';
 import * as ep___i_registry_getDetail from './endpoints/i/registry/get-detail.js';
 import * as ep___i_registry_get from './endpoints/i/registry/get.js';
 import * as ep___i_registry_keysWithType from './endpoints/i/registry/keys-with-type.js';
@@ -568,6 +569,7 @@ const $i_readAllUnreadNotes: Provider = { provide: 'ep:i/read-all-unread-notes',
 const $i_readAnnouncement: Provider = { provide: 'ep:i/read-announcement', useClass: ep___i_readAnnouncement.default };
 const $i_regenerateToken: Provider = { provide: 'ep:i/regenerate-token', useClass: ep___i_regenerateToken.default };
 const $i_registry_getAll: Provider = { provide: 'ep:i/registry/get-all', useClass: ep___i_registry_getAll.default };
+const $i_registry_getUnsecure: Provider = { provide: 'ep:i/registry/get-unsecure', useClass: ep___i_registry_getUnsecure.default };
 const $i_registry_getDetail: Provider = { provide: 'ep:i/registry/get-detail', useClass: ep___i_registry_getDetail.default };
 const $i_registry_get: Provider = { provide: 'ep:i/registry/get', useClass: ep___i_registry_get.default };
 const $i_registry_keysWithType: Provider = { provide: 'ep:i/registry/keys-with-type', useClass: ep___i_registry_keysWithType.default };
@@ -921,6 +923,7 @@ const $retention: Provider = { provide: 'ep:retention', useClass: ep___retention
 		$i_readAnnouncement,
 		$i_regenerateToken,
 		$i_registry_getAll,
+		$i_registry_getUnsecure,
 		$i_registry_getDetail,
 		$i_registry_get,
 		$i_registry_keysWithType,
@@ -1268,6 +1271,7 @@ const $retention: Provider = { provide: 'ep:retention', useClass: ep___retention
 		$i_readAnnouncement,
 		$i_regenerateToken,
 		$i_registry_getAll,
+		$i_registry_getUnsecure,
 		$i_registry_getDetail,
 		$i_registry_get,
 		$i_registry_keysWithType,
diff --git a/packages/backend/src/server/api/endpoints.ts b/packages/backend/src/server/api/endpoints.ts
index 208bffeb6b..5ea4121918 100644
--- a/packages/backend/src/server/api/endpoints.ts
+++ b/packages/backend/src/server/api/endpoints.ts
@@ -219,6 +219,7 @@ import * as ep___i_readAllUnreadNotes from './endpoints/i/read-all-unread-notes.
 import * as ep___i_readAnnouncement from './endpoints/i/read-announcement.js';
 import * as ep___i_regenerateToken from './endpoints/i/regenerate-token.js';
 import * as ep___i_registry_getAll from './endpoints/i/registry/get-all.js';
+import * as ep___i_registry_getUnsecure from './endpoints/i/registry/get-unsecure.js';
 import * as ep___i_registry_getDetail from './endpoints/i/registry/get-detail.js';
 import * as ep___i_registry_get from './endpoints/i/registry/get.js';
 import * as ep___i_registry_keysWithType from './endpoints/i/registry/keys-with-type.js';
@@ -566,6 +567,7 @@ const eps = [
 	['i/read-announcement', ep___i_readAnnouncement],
 	['i/regenerate-token', ep___i_regenerateToken],
 	['i/registry/get-all', ep___i_registry_getAll],
+	['i/registry/get-unsecure', ep___i_registry_getUnsecure],
 	['i/registry/get-detail', ep___i_registry_getDetail],
 	['i/registry/get', ep___i_registry_get],
 	['i/registry/keys-with-type', ep___i_registry_keysWithType],
diff --git a/packages/backend/src/server/api/endpoints/i/registry/get-unsecure.ts b/packages/backend/src/server/api/endpoints/i/registry/get-unsecure.ts
new file mode 100644
index 0000000000..b3effbb82e
--- /dev/null
+++ b/packages/backend/src/server/api/endpoints/i/registry/get-unsecure.ts
@@ -0,0 +1,55 @@
+import { Inject, Injectable } from '@nestjs/common';
+import { Endpoint } from '@/server/api/endpoint-base.js';
+import type { RegistryItemsRepository } from '@/models/_.js';
+import { DI } from '@/di-symbols.js';
+import { ApiError } from '../../../error.js';
+
+export const meta = {
+	requireCredential: true,
+
+	secure: false,
+
+	errors: {
+		noSuchKey: {
+			message: 'No such key.',
+			code: 'NO_SUCH_KEY',
+			id: 'ac3ed68a-62f0-422b-a7bc-d5e09e8f6a6a',
+		},
+	},
+} as const;
+
+export const paramDef = {
+	type: 'object',
+	properties: {
+		key: { type: 'string' },
+		scope: { type: 'array', default: [], items: {
+			type: 'string', pattern: /^[a-zA-Z0-9_]+$/.toString().slice(1, -1),
+		} },
+	},
+	required: ['key'],
+} as const;
+
+@Injectable()
+export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-disable-line import/no-default-export
+	constructor(
+		@Inject(DI.registryItemsRepository)
+		private registryItemsRepository: RegistryItemsRepository,
+	) {
+		super(meta, paramDef, async (ps, me) => {
+			if (ps.key !== "reactions" && ps.key !== "defaultNoteVisibility") return;
+			const query = this.registryItemsRepository.createQueryBuilder('item')
+				.where('item.domain IS NULL')
+				.andWhere('item.userId = :userId', { userId: me.id })
+				.andWhere('item.key = :key', { key: ps.key })
+				.andWhere('item.scope = :scope', { scope: ps.scope });
+
+			const item = await query.getOne();
+
+			if (item == null) {
+				throw new ApiError(meta.errors.noSuchKey);
+			}
+
+			return item.value;
+		});
+	}
+}
\ No newline at end of file
diff --git a/packages/megalodon/src/misskey.ts b/packages/megalodon/src/misskey.ts
index 7bfe4a622a..f43e88cfcc 100644
--- a/packages/megalodon/src/misskey.ts
+++ b/packages/megalodon/src/misskey.ts
@@ -961,21 +961,54 @@ export default class Misskey implements MegalodonInterface {
   // ======================================
   // accounts/preferences
   // ======================================
+
+  private async getDefaultPostPrivacy(): Promise<"public" | "unlisted" | "private" | "direct"> {
+		// NOTE: get-unsecure is sharkey's extension.
+		//       Misskey doesn't have this endpoint and regular `/i/registry/get` won't work
+		//       unless you have a 'nativeToken', which is reserved for the frontend webapp.
+
+		return this.client
+			.post<string>("/api/i/registry/get-unsecure", {
+				key: "defaultNoteVisibility",
+				scope: ["client", "base"],
+			})
+			.then((res) => {
+				if (
+					!res.data ||
+					(res.data != "public" &&
+						res.data != "home" &&
+						res.data != "followers" &&
+						res.data != "specified")
+				)
+					return "public";
+				return MisskeyAPI.Converter.visibility(res.data);
+			})
+			.catch((_) => "public");
+	}
+
   public async getPreferences(): Promise<Response<Entity.Preferences>> {
-    return new Promise((_, reject) => {
-      const err = new NoImplementedError('misskey does not support')
-      reject(err)
-    })
+    return this.client.post<MisskeyAPI.Entity.UserDetail>("/api/i")
+			.then(async (res) => {
+				return Object.assign(res, {
+					data: MisskeyAPI.Converter.userPreferences(
+						await this.getDefaultPostPrivacy(),
+					),
+				});
+		});
   }
 
   // ======================================
   // accounts/followed_tags
   // ======================================
   public async getFollowedTags(): Promise<Response<Array<Entity.Tag>>> {
-    return new Promise((_, reject) => {
-      const err = new NoImplementedError('misskey does not support')
-      reject(err)
-    })
+    const tags: Entity.Tag[] = [];
+		const res: Response = {
+			headers: undefined,
+			statusText: "",
+			status: 200,
+			data: tags,
+		};
+		return new Promise((resolve) => resolve(res));
   }
 
   // ======================================
diff --git a/packages/megalodon/src/misskey/api_client.ts b/packages/megalodon/src/misskey/api_client.ts
index 5b7d49f60a..36746c1e87 100644
--- a/packages/megalodon/src/misskey/api_client.ts
+++ b/packages/megalodon/src/misskey/api_client.ts
@@ -140,6 +140,16 @@ namespace MisskeyAPI {
       }
     }
 
+    export const userPreferences = (v: "public" | "unlisted" | "private" | "direct"): MegalodonEntity.Preferences => {
+			return {
+				"reading:expand:media": "default",
+				"reading:expand:spoilers": false,
+				"posting:default:language": "english",
+				"posting:default:sensitive": false,
+				"posting:default:visibility": v,
+			};
+		};
+
     export const visibility = (v: 'public' | 'home' | 'followers' | 'specified'): 'public' | 'unlisted' | 'private' | 'direct' => {
       switch (v) {
         case 'public':