Rule of thumb of mine whenever I deal with these kinds of casinos is to check if they have an announcement channel over here at bitcointalk, that at leasts sets me up that these people are confident enough of their credibility. If they aren't here, it's a big no-no for me no matter how much licenses can be bought, but credibility and reputation couldn't be purchased. I've seen a lot of people saying that these sites you're talking about appears to be derivates of the same fraudulent site, although I don't want to confirm nor deny these allegations as that would mean I'd have to waste my money over sites that are already shady, all for the sake of bypassing KYC which isn't even that hard in the first place.
I suggest you stop looking for no-KYC casinos, this field is a breeding ground for scammers and hackers.
Though the criteria of not being on the forum doesn't really make a casino a scam but as you said, this industry is full of scammers so people need to be careful when they are choosing a platform to gamble and they shouldn't just choose a platform only because it doesn't ask for KYC. It is much better to choose a reputable platform and do KYC there and only use that for gambling.
People who tend to change platforms every now and then are more vulnerable to scams and frauds, such people need to stick to one platform and only use that for their gambling activities if they want to stay away from scammers.