There's a lemmy community I used to be subbed to with a mod that decided to grab every recent and new post from /r/ and repost here. No comments on 4 of 5 posts, and one or two on the remaining 1 of 5. New posts every 3 to 5 minutes. Many readers thought it was a bot, and on a meta post in the sub, a different mod said they aren't a bot, they're doing a great job, and we should block the mod.
Did that and unsubbed. Now my "new" feed isn't full of reposted, zero-engagement posts.