It might be better as a display name than a community name. I only say that because as much as I like funny community names, they can unintentionally reduce and obfuscate community's visibility and purpose to newcomers.
If one wants it to be easily found, arguably the best community names may be either shorts or clips, followed possibly by shortvids. The display name however can be as playful as one might want, as I think frontends/apps rely on the community name when searching over the display name.
Now for the worst name, in either respect, you might make it microvlogmemes, or microvlogs, neither of which I think I've ever seen or heard anyone use anywhere. I can't even remember the last time I heard or read anyone else mention a vlog, so yeah, may be technically accurate but awful otherwise.
Unfortunately I'm not seeing the updated sidebar, and it doesn't appear on sh.itjust.works either. I think the issue is with Lemmy itself, and that it isn't handling sidebar changes from a remote instance/moderator (as your account isn't on sh.itjust.works).
There's still a lot of rough edges like that with Lemmy right now, but that's software in development for ya. =/