I'm not a fan of those sites, but I would love to see a poker site based on this blockchain. There is only one blockchain site that I know of, and it has a lot of poker people involved, which if you have been around as long as me, doesn't actually make it attractive for lots of my SATS.
I have deposited a few, but there is no way I would play big games on it. HIVE however, I trust this community and this blockchain.
I would like to see a poker game. I have no programming skills so I don't know if it would be possible to do it or it might have to be a token based on the blockchain. I'm toying around with running a lucky numbers or hi/lo game where the winning number is picked using the txid of a post for choosing the winning number. The old Steem used to be filled with lotteries and the bulk of them seemed shady.
I don't see a reason why it couldn't be on the blockchain.
I'd have to put some thought on exactly how it could work though.