Yes, KYC has been mandatory at it when it was used as an exchange and now it allows gamblers to place bets then again KYC is going to be 100% mandatory.
That's strict. I mean, even a CEX before won't require or mandate a KYC but they only did it when the regulation starting to take over in the crypto world but if we already did a KYC before on them, then we are now exempted on it if we will use their sports betting feature. KYC will only get applied to their new customers, whichever function they will opt-in for.
Now, they're going to make huge amount from the ones who participate in sport prediction market, and that means they'll get many new signups. Especially from the ones who aren't into trading at all.
They can if many people place a bet on them but I think they will, since they are popular already. It is their advantage compared to those sports betting sites that are still starting or even to those that are established already. They now have a tougher competitor but I think they will also work harder now to counter it.