For the record, the reason why his slip up was significant is because: 1) They were able to find code identical to the SO question within the SilkRoad source c

For the record, the reason why his slip up was significant is because: 1) They were able to find code identical to the SO question within the SilkRoad source code 2) They already had circumstantial evidence linking him to the site, this just strengthened it 3) "frosty" is the user/computer name used to generate the private ssh key on SilkRoad's server, further linking him to the site