I think just Lemmy, kbin, mastodon, etc. naturally implies the platform-specific -verse, doesn't it? I think "Hey, Lemmy--" posts addressing the entire fediverse are being accidentally myopic, but "Hey, Lemmy [users]" would be understandable, given a need to discuss our UI differences. The former is fairly common atm, though, which I admit is faintly annoying to see on my kbin feed. I feel so left out.