This is a really good tools, could you make the same for steam groups ?
Look at this french group :
http://steamcommunity.com/groups/GsK_steam
They claim to be the best hackers on the earth and that they are tracked by french secret police cause of what they're doing. My servers catched many of those kid trying to use well known things like sv_soundscapeprintdebug(...), timeleft, changelevel (i'm not even running mani admin so it wont work at all anyway) .... They even bought a DoS Attack program for CS:S (they aren't real hackers, so they don't know how to code it).
All of those kid's tell their friends how to exploit server's security hole, so my servers protection catch&ban many of them too, when I convert their steam ID I can see that they have at least one of GSK kids in their friend list ...
And they steal other's account too (not by hacking), because they get VAC ban (best hackers always download free cheats for sure :p)