Welcome Coinzino to bitcointalk , yes I can see that you are not mandatory asking for KYC for direct crypto user , but is this also applicable from deposit and withdrawals?
Love the title Fast , Fun and Fair , that is 3 F's that gamblers truly seek mostly , but of course having a great support will also bring you more popularity and advantage towards competition in luring more players so better stick with that and extend your advertising by providing at least some events to attract players.
If it's not mandatory but there is an option for kyc then maybe it can give you an extra benefit like an increase in deposit and withdrawals. I am talking about large amounts which most whales can afford. If you are a small time gambler then don't worry.
You can play the normal way without doing the KYC but I think if they suspect your account from doing an abuse then you would be required to pass the KYC before you can continue further. The 3 f's that you are talking about there sound familiar to me. I know, I saw this before on sportsbet.io but are the two has a relation? As there are some sites which are also connected to each other.