Kyc is not asked without any reason. Maybe they have defected some stuffs. Most provably about alt accounts. But I'm not sure though. But I can suggest everyone if face any problem of playing or muted in chat, shortly check your registered email.
In my case, I assume they asked me to do KYC because I keep depositing and withdraw my balance regular. I usually deposit and withdraw 2 times a day since I gamble morning and night but I never leave my balance on the casino except yesterday when my account was disabled.
My account is already fixed and I manage to verify my account to withdraw my balance. Thank you for forwarding my issue to the devs because I received the reply to my email right after I bumped on it. I assume they are applying KYC to user that reached certain total deposit and withdraw amount.