This is a good idea. It's be cool to see a user was an "expert in...X, Y, Z" or something like that. You'd need real critical mass for something like that. M

This is a good idea. It's be cool to see a user was an "expert in...X, Y, Z" or something like that. You'd need real critical mass for something like that. Most new sites are happy just to get users with any reputation, much less divide it amongst topics. Maybe it would be a good feature to add after a site matures.