What we know right now is that freebitcoin picked a winner very provably fair way and they also sent him an email, dude can see his profile as well here so basically the winner is all decided and notified. I don't know what happens and if there is "if the real winner doesn't respond to email in 30 days it goes to next winner" or stuff like that.
However, if winner doesn't respond or care, I have no idea what will happen and whats the rules and so forth when that happens. Lets hope that dude gets here eventually and gets his money, if not maybe thequin could enlighten us about what will happen if the winner doesn't respond for years. After all freebitcoin made tons of profit from this and it shouldn't turn into "winner hasn't responded so we are keeping the money" type of situation.
There is no scenario where freebitcoin doesn't pay up, they have paid probably THOUSANDS of bitcoin so far to their faucet claimers, (don't know the real number but I think it is possible with how old they are and how little bitcoin price used to be) so all in all this place already gave out - FOR FREE- hundreds of lambo if you calculate just the free faucet part.
Considering they give out free lottery tickets and free reward points and many other stuff, they have probably given even way more than that. In return? They have 5% house edge... that's it, that's all there is to it, they don't get your money in any other way, just make you gamble with 5% house edge versus %1. If you want to be suspicious about a website, you should at least do your own research.