That's because they're not purging them anymore, so a lot of people go around creating them. I do remember proposing allowing users to add emotes to the list, and I do remember the somewhat bitter reaction I received. Well, a year and several plz purges followed by community outcries afterwards we basically have what I proposed, only with a 15kB limit and cluttering the user database with what are basically dead accounts. Way to go, dA administration, way to go.