I just see the update and yes, its not good to use wrong details, not unless you're planning to withdraw your funds and not to gamble using Roobet anymore.
Entering incorrect details in order to bypass this issue is silly since it will definitely cause problems later on during verification etc.
I care about my privacy but seriously, I don't think banks also protect our personal details same thing with your social media accounts those institutions are selling our personal details, that's more alarming compare to Roobet level 1 KYC.
I guess you are talking about Facebook which is true, but this doesn't apply to all social media sites. As long as hackers don't hack and share your details, your details stay private on most popular social media sites excluding Facebook etc.
Also, the issue here is that Roobet is part of a minority that made KYC mandatory. The majority like Stake, Crypto-Games, Primedice, FJ etc don't require any form of KYC whatsoever(Unless your account is under suspicion).