Right now there isn't much regulation in the Bitcoin gambling ecosystem except maybe sites banning certain visitors from like USA.
However in the future there will be regulation and then most likely gambling sites will be required to KYC.
Right now most of them do not. The only KYC you hear about is when someone tries to mix a BTC balance which was taken from a dark web or some stolen BTC.
The site operator then has to make sure the funds aren't stolen and legit and needs to due diligence against future liability.
Hmm.
They can be required, but they could easily decline.
I mean, for fucks sake, people buy drugs online, do you think a silly regulation could stop
some from running sites without KYC?
I've never seen Stake or Primedice require documents for large withdraws/wins, have I missed something? I've never played on either site and I'm not familiar with that but this isn't something I would expect them to do.
I guess will never know since it is stated that they only asked if you win already a large amount (which not yet confirmed if they really implement KYC ) but in ICO it seems mandatory now since many cheaters and hackers were already around. The only downside if ever in a casino is that they should inform their players in advance or make an announcement of it before their players decide to deposit some amounts on them that there are some regulations like that since there are people who want to keep themselves anonymous.
I saw it as quite surprising too.
Would be nice if the OP provided some information to back up this claim.