People do only make out some search after that they had been scammed and this is where they do learn up their lessons which is really just too absurd because they could really be able to avoid those things if they
had just able to make search first before taking any actions.
And that's pretty much how scammers take money off of others. They're rather vulnerable and are ignorant of how the internet can answer most questions if you look up properly, and can pretty easily let you off from being scamed.
It depends on the negative review, when the review is quite emotional without any evidence I tend to disregard the negative review as I just assume the gambler lost money and it is simply salty about it.
However if the negative review is articulated and it is very precise on describing what is wrong with the casino then I give it way more weight, and quite honestly just one of those reviews can be more than enough for me to not gamble at that casino, because as we know in this market once your coins are no longer in your wallet it is impossible to get recover them, unless the other person is willing to send you those coins back, something unlikely if you happen to be gambling at a scam casino.
It actually depends even if the review was precise, I'd rather look for proof or guarantees that said complaints were actually understandable. Negative reviews that hate on a casino due to say, UI, slow website, and other tech-ish stuff like that, I usually ignore (but I still don't look at them preferably) and do not really consider it as a scam site. I'd only ever consider a review as "negative" if the casino was a legit scam, otherwise, I'd see it as a simple review.