As an update, I have been getting free daily spins with the FUN tokens I have locked, most of which I got for free anyway. The site has been fairly reliable for the last month or two, with the only issue being a delay with instant BTC withdrawals. So I give credit to FBC for showing some reliability on my end.
Recently, I've noticed that there are more positive posts from users in this thread than there used to be. This is a kind of indicator that some positive changes are taking place inside freebitcoin.
So, it will be good if the freebitcoin team fixes all the issues they have accumulated. However, I wouldn't call this gambling platform reliable anymore, especially after what has been happening throughout the past year.