First of all that 1xbet has stopped thier promotion for a long time on this forum , the only presence they have here is through their ANN thread and their too they are not active. Campaign has been close down for many months now.
1xbit and 1xbet are completely different sites. 1xbit is the scam site while 1xbet is a way bigger site who don't advertise their services in this forum. Also, they have been known to restart their campaigns after long breaks. Do your research.
These two gambling sites seem to be run by the same company. One of them is properly licensed and regulated, but the other one is totally off the grid, operating without permission or oversight. Since no one's watching that unauthorized site, there's a decent chance they might try some shady or misleading stuff with their customers that they couldn't get away with on the legit site.
I mean the legal one has to follow rules and get audited and everything and the other one though - they can pretty much do whatever they want. Maybe fudge some odds here and there if they feel like it. Or just straight up refuse to pay out winnings sometimes. Without a license, no one can hold them accountable. So while the two sites might look similar, players gotta realize that the unlicensed one comes with some extra risks. More potential for getting ripped off and whatnot.