I Think that everyone should reblog some art they aren't necessarily interested in sometimes, aswell as art they are interested in. It could help build our art community on Tumblr much better.
Of course it doesn't mean people should feel guilt tripped to reblog things against their will and blog's specifications (theme blogs, art blogs for personal art only, etc.)
I do think however it could be useful if at least we in art community promoted a special day in a month in which people reblogged an artwork/a bunch of artworks from strangers. So even if you felt odd about spamming on your 'personal stuff only - blog' it wouldn't feel That odd on that day. Not everyone would have to participate each time obviously, it'd be just nice to make it a new fun trend :)
We could call it 'art reblog day' or something else, too, so people could also search for it or block it.
It's been proposed we should do it at the end of each month for the art reblog day and i think it's a great idea.
Please help me share this idea around so it becomes reality! :)