Yes, that's right, for example, I have experienced this on several casino sites where I left my dogecoin because I thought the value was not too expensive at that time so I left it then when the price went up again I accessed the site and could no longer open an account, funds and accounts. I was frozen, that was my lesson and I thought of warning anyone not to leave any money in the casino no matter the amount.
Damn. That sucks. Which site are you talking about here? Were you able to access your funds and recover them later? Asking because I will personally avoid it myself and it would help others too.
Although they won't succeed on their plan and we should know which are those claims that needed to put our attention since valid proof is always important with those claims they posted.
True. Some of those trolls are actually employed by rival casinos which is why valid proof as you mentioned helps a lot.