It seems extremely likely to me.
- They joined the forum to post about MiningUnited.
- They tried to discourage people from contacting the feds.
- They received a 1 BTC payment after the site closed, yet the blockchain shows they were only owed 0.05 BTC.
- The MiningUnited payout page showed that same address as having 0.4 BTC unpaid, yet the blockchain no such transaction for them.
- After making the allegation against Blueblade, a new use registered to claim that they were owed 0.2 BTC. That user received a pyou from CoinAd in the same transation as which Blueblade did.
Here's the thread, for those who haven't seen it yet.
