maybe because of this thread I received the message :
he offers me to use Nitro Betting, but I don't really sure because that red line on top is scaring me.
To be safe don't click any link on the internet and that users probably just want you to use his referral to earn money while you are playing. You can report it to moderator I think they can ban users like that for sending an unsolicited message. Anyway, I think you should not use cloudfare or VPN if that website is not really allowed I don't think it will end up good.