payout - we'll see, I think the Community gets a small portion of it, just like curators do, but idk - have to see how its split up when my first post in a community gets paid out.
For me who is looking to support artists, it is perhaps a bit easier in art related communities, because they are moderated and posts that do not qualify as art are muted in the Community, whereas anybody can use the #art tag and looking under the tag you have to scroll through a lot of crap to even find anything remotely qualifying as art. Of course a community can only be as good as the admin and moderators are vigilant and take it serious.