I remember a while back that BadBear told me he used to be positive QS was TradeFortress, but then over time didn't believe it anymore. I wonder if there was any IP evidence tying them together somehow? I think it's probably more likely QS bought that account than them being truly the same person but I guess you never know. If I recall correctly QS had thread trying to buy Donator/ VIP accounts at one point.
This is also possible:
also, it's conceivable (perhaps unlikely) that QS claimed to have received funds but never actually did. we don't have evidence that he posted the address in question. he could have done this as a scare tactic. however, this doesn't explain the involvement of the TF account.
Maybe TF just sent money to himself and gave QS an address to post publicly.