Looks like he withdrew his money from freebitco.in to the btc address freebitco.in generated so it's lost.
They wouldn't have lost it because the default address is is their deposit address. It would have just gone back to their account minus the transaction fee. When that happened they probably worked it out and locked the thread.
For those who don't know, freebitco.in makes a bitcoin address that you use as a username, which is weird because normally usernames are supposed to to be user-generated. They at least used bitcoin addresses the last time I played at the site.
When the site first started you needed a Bitcoin address to register an account. As so many people who come to the site are new to Bitcoin they didn't have a wallet so we changed it to email address registration. The database still needs a Bitcoin address to index the account so we set it their deposit address until they change it.
