Yes, sounds a bit confusing. I can't think of a better term to talk about a place where we go to talk about particular snaps than #snap itself, and looking at empirical evidence by listing the topics in that category, people seem to get it.
Renaming "snap" to "snapcrafters" will definitely reduce clarity and blur the lines, because any topics being discussed in #snapcraft will necessarily be held by people using snapcraft, and neither of those names hint at the fact talking about snaps instead of snapcraft itself is welcome.
A community category seems inappropriate for a different reason. We're all part of the community that works on these concepts, so every single one of those categories is about community.