1xbit is totally trusted site for me now. There is no issue in their withdrawal and if you are not a cheater, you should have no problem in getting the withdrawal.
I believe you say like this because you are participating in their signature campaign. Do you prove yourself that they are trusted?
The problem is that few gamblers cheat the site by making multiple accounts and other fraudulent activities, and later blame on the site.
If that is the real problem from the first time they got the negative trust, it should not be a hard thing to resolve. If they are trusted, the accusations wont keep coming every single day. But what's the fact?