I’ve seen keebinetters, but that feels like trying to say Massachusettsian instead of Bay Stater.
Kay-Binner seems like the most simple and inclusive, but that depends on the fact that you pronounce kbin Kay-bin
Maybe something representing the federated nature? Like Fedizen maybe?
I would go for Binners. Rolls off the tongue a bit more nicely. And somehow makes me think of loot diggin’ which is an apt analogy to riffling through threads and posts.
Kbeans holds up too
Binners is our word, you can say binna though.