Looking at the transaction log, yes, people are still buying coins.
If people would stop using the site, he would be in deeper shit.
We now know that he has lost quite a substantial amount of BTC, but we also know that that happened a few months back.
In the meantime, he has been able to keep it running.
If they rework the site and charge a small transaction fee, over time they would be able to repay their debts, and become profitable.
Let's just hope that happens instead of simply closing the site, because that would be bad for all.