Re: REMOVE NUBBINS FROM THE DEFAULT TRUST LIST FOR REPEATED TRUST ABUSE
Everybody doesn't use the same versions of operating systems or browsers though. It's not just a case of oh he uses windows and firefox therefore we've caught him. The admins can see the IPs and detailed info and users are vastly different and if two people are using the same proxies/tor and logging in and out from one account to the next it is blatant.
What you are referring to is browser fingerprinting. Tor Browser is designed to prevent against that and it does a pretty good job at it.
All users have the same fingerprint, they appear to be using Firefox on Windows regardless of their actual OS, plus Tor Browser also prevents against more advanced fingerprinting methods such as by using HTML5 canvas, HSTS database, Flash cookies or various javascript-based methods.
I guess you could be tracking people using cookies if they logged out of one account and into another during the same Tor Browser session.
I don't know how he did it but BadBear previously figured out someone's alts a while ago and they all exclusively used tor (I figured out a few of them from various other evidence but he found a load more). I even made a joke he should join the NSA
but maybe it was through cookies or something else only the admins know about.