Oh yeah, didn't notice those badges... I think a "stellar police" badge would be a good idea. Or maybe just a general "Expert" badge, and then we can write what we're expert in? (I'd consider myself to be an expert in planetary science, astrophysics, and geology - maybe that would all come under "stellar police" though, I dunno). I guess having a general "expert" badge with more explanation somewhere (e.g. in the profile, or on the side there under the username) would possibly be easier to manage, rather than making loads of different badges for each speciality.