https://bitcointalksearch.org/topic/1xbit1xbet-scam-1792648
https://bitcointalksearch.org/topic/1xbetcom-scam-not-engaged-1957236
https://bitcointalksearch.org/topic/1xbet-scam-1792608
https://bitcointalksearch.org/topic/unsolved-1xbitcom-withdrawals-blocked-betting-blocked-no-answers-3934-btc-1780490
Bitcointalk representative of 1xbet have negative trust because it was proven scam platform https://bitcointalk.org/index.php?action=trust;u=910922
Even if they will give you 1BTC on every claim, you will not be able to withdraw them.
These was the ones I was talking about in my previous post. Good research piloder. Now that I think about it, there should be some sort of page where we can see which gambling sites are legit and which ones aren't. Some website or some sticky'd thread over the gambling section where people can check quickly whether a gambling site is real or not. Honestly it's hard to know which ones are legit just by looking at the gambling site.