diff --git a/packages/backend/src/server/activitypub/cache.ts b/packages/backend/src/server/activitypub/cache.ts
index 00199ee253..eb20d00787 100644
--- a/packages/backend/src/server/activitypub/cache.ts
+++ b/packages/backend/src/server/activitypub/cache.ts
@@ -1,6 +1,4 @@
 import { Cache } from "@/misc/cache.js";
-import { Note } from "@/models/entities/note.js";
 import { User } from "@/models/entities/user.js";
 
 export const userCache = new Cache<User | null>(1000 * 60 * 30);
-export const noteCache = new Cache<Note | null>(1000 * 60 * 30);
diff --git a/packages/backend/src/server/activitypub/featured.ts b/packages/backend/src/server/activitypub/featured.ts
index d06a28a9ca..5dc8792a9a 100644
--- a/packages/backend/src/server/activitypub/featured.ts
+++ b/packages/backend/src/server/activitypub/featured.ts
@@ -5,16 +5,14 @@ import renderOrderedCollection from '@/remote/activitypub/renderer/ordered-colle
 import { setResponseType } from '../activitypub.js';
 import renderNote from '@/remote/activitypub/renderer/note.js';
 import { Users, Notes, UserNotePinings } from '@/models/index.js';
-import { userCache } from './cache.js';
 
 export default async (ctx: Router.RouterContext) => {
 	const userId = ctx.params.user;
 
-	// TODO: typeorm 3.0にしたら .then(x => x || null) は消せる
-	const user = await userCache.fetch(userId, () => Users.findOne({
+	const user = await Users.findOne({
 		id: userId,
 		host: null,
-	}).then(x => x || null));
+	});
 
 	if (user == null) {
 		ctx.status = 404;
diff --git a/packages/backend/src/server/api/endpoints/notes/reactions.ts b/packages/backend/src/server/api/endpoints/notes/reactions.ts
index 43e5d1ef6f..70db12fb14 100644
--- a/packages/backend/src/server/api/endpoints/notes/reactions.ts
+++ b/packages/backend/src/server/api/endpoints/notes/reactions.ts
@@ -44,13 +44,8 @@ export const paramDef = {
 
 // eslint-disable-next-line import/no-default-export
 export default define(meta, paramDef, async (ps, user) => {
-	const note = await getNote(ps.noteId).catch(e => {
-		if (e.id === '9725d0ce-ba28-4dde-95a7-2cbb2c15de24') throw new ApiError(meta.errors.noSuchNote);
-		throw e;
-	});
-
 	const query = {
-		noteId: note.id,
+		noteId: ps.noteId,
 	} as DeepPartial<NoteReaction>;
 
 	if (ps.type) {
diff --git a/packages/backend/src/server/api/endpoints/users/report-abuse.ts b/packages/backend/src/server/api/endpoints/users/report-abuse.ts
index e091b8e1b1..57f6a465fe 100644
--- a/packages/backend/src/server/api/endpoints/users/report-abuse.ts
+++ b/packages/backend/src/server/api/endpoints/users/report-abuse.ts
@@ -70,7 +70,7 @@ export default define(meta, paramDef, async (ps, me) => {
 	}).then(x => AbuseUserReports.findOneOrFail(x.identifiers[0]));
 
 	// Publish event to moderators
-	setTimeout(async () => {
+	setImmediate(async () => {
 		const moderators = await Users.find({
 			where: [{
 				isAdmin: true,
@@ -94,5 +94,5 @@ export default define(meta, paramDef, async (ps, me) => {
 				sanitizeHtml(ps.comment),
 				sanitizeHtml(ps.comment));
 		}
-	}, 1);
+	});
 });