Yes, something like that.

The very first mention of the Silk Road online was from a user named "altoid" on Shroomery – the post is actually still up: https://www.shroomery.org/forums/showflat.php/Number/1386099...

altoid was also the name of the account that had originally posted another question on SO, not the one about sessions, but one about Tor services: https://stackoverflow.com/questions/15445285/how-can-i-conne...

The SO account was later changed from altoid to frosty. The email address used to register the SO account was rossulbricht@gmail.com.

Also when the FBI imaged the Silk Road server, the username was "frosty". There were just so many links going back to him :-/

There have been long articles about the Silk Road and its demise, the Wired ones have a lot of details including what I mentioned above. Part 1 is here: https://www.wired.com/2015/04/silk-road-1/