Because there are no other memes left. Simon is ded. Blepe is ded. Plant was never really a thing. Borche and Duke are down to a couple of guys posting them and even Leafgirl's threads are struggling to remain afloat. The only alternative to her is to give into the green tide and become another Pepe board.
All of /bant/'s "memes" declared themselves that and then silently sat on their loins and died, as if expecting someone to do the work for them. Cirnoposters are persistent, thick-skinned, and more importantly, willing to make their own OC which is the major reason why they're still here when fellow animeposters have largely dropped off.
I hope you're not advocating replacing them with frens though, as much as I like you guys you really are just a Pepe-clone and alone you would be eaten alive by Kekistan.