>>47053124Its good for artists in short term/bursts of attention because there are hundreds of thousands of users constantly on twitter while art gallery sites usually only have people check in a few times a day. It also allows art to spread rapidly to new audiences and pick up notice via retweets.
The major thing its bad for is from a new follower's perspective for someone who wants to check out older works and has to wade through a million memes, reaction images and pictures of the artist's lunch that day.