I have something with art and did my exam in it. I can paint but am a sculptor, I never was a writer. I don't think it is the community that is upvoted but the author/writer. I started noticing that as I pisted as a freewriter and next in my own community.
I tend to start a new one to give room to chat, for questions and annoyment. The only SP I need for that is enough to post once a day at most one topic. Therest is commenting. For sure curators will upvote accounts no matter where the author posts.

If it comes to art most of what I see isn't art and there will never be more if there's nothing to stay for.