No public evidence of that as of now, but it could definitely be true. The interesting thing is that it doesn't really matter, those "insiders" would have dumped the coins in the open market breaking the peg even further. So yeah, maybe LFG could have sold the bitcoins a bit better in the open market, but I don't think that it would have made a difference.
There’s no public evidence that they were defending the peg. Statements from these charlatans aren’t evidence and shouldn’t be believed without clear evidence of transactions. And I don’t there is any evidence of the transactions using the missing $3B.
