A new casino can later become to scam. Sometimes the people that created the casino may not be able to market the casino very well and because of low profit in a way the casino can no longer function, they just stop the casino and not allowing people to withdraw.
I too will advice people to just try the casinos or other gambling sites on this forum instead. If it is a new casino, they should try it with little amount of money. They should try the ones that have signature campaign which are able to market their gambling sites on this forum. The gambling sites that I have gone for on this forum have active signature campaign and also having active announcement thread.
If it is a new gambling site that is not in this forum, I do not try to register and this has been the reason no casino has scammed me before. I am not saying that new gambling sites can not scam, use very low amount of money to gamble on such gambling sites.
If someone uses your logic, then there would never be any successful new casinos or any need for new casinos to even try. Every casino started out as new correct? Back in the day casino had a minimum bankroll 100x that of the max win in 1 bet, nowdays there are a lot taking a risk and allowing you to win well over their bankroll. Check their TiS to see if you can even wd your whole win if you hit a large amount. Some casinos have a max weekly or monthly wd limit set so they do not deplete their entire bankroll if someone is lucky enought to hit huge.
Also, a signature campaign does not mean a site will not scam. If you believe that, you might be slow in the head.
Now, I do agree that active casinos on the forum, casinos that launch a proper announcement thread, and casinos that do some sort of marketing on the forum are at least making an effort and trying to gain some trust, but that doesn't mean they cannot or will not scam. 1xbit, bitlucy, 999dice, Betking, Betnomi and multiple others over the years have been known to scam users. Some are old brands some are new.
If I give any advice, I would say look for sites that are trying to engage with the community. Sites that are offering promotions. Sites that do not end up in scam accusations section 2 weeks after coming to the forum and already facing wd issues. Be careful with all casinos when depositing(especially large amounts) and make sure to read their ToS and know if you have to pass kyc or not or verify your funds.