I see lots of "user312" and such, they are similar and make things difficult. I think it would be nice if we encouraged these users to pick a more personal name.

We already have a bar that shows the first time, and Pascal suggested that we [repeat the reminder][1] when they get more reputation. 

I think that a more stackoverflow-y way of handling this is to **give reputation points to people the first time they change their username**. If we want to be picky about it, we could restrict it to changes that don't match the user[0-9]* pattern. This sets the right incentives, in a way that I think will benefit everyone.

  [1]: https://meta.stackexchange.com/questions/40560/suggest-userxyz-that-they-should-choose-a-real-name