Memes communities tend to be very popular
Maybe, but if it’s limited in scope to memes about the Fediverse, the community might not exactly be overrun. Hardly anyone in the Fediverse memes the Fediverse, and outside the Fediverse where the huge majority of memes on Lemmy come from, nobody does.
That is, if such a community exists, maybe it’ll drive people to meme the Fediverse in the first place.
Maybe it isn’t as massive as Mastodon in the western world. But add all the users in East Asia, especially Japan where Misskey comes from, and you’ve got numbers that can’t be ignored anymore.