For a site to have a license is an advantage. Many gambling sites are not having any, but it would keep players away from worries if the site they are engaging their money with, is licensed, given that there are many gambling sites resulting to scam. Exit scams of gambling site is quite "noisy" these days. Maybe, a site having a license would lessen the risk of such.
But if you are looking for a gambling site which accepts cryptocurrencies, most of the gambling sites are not having license because there is no need for third party(banks) on every transactions because payments are directly from the player to casino wallet. Many popular gambling sites are indeed not having license to operate but since they establish a reputations, players still trust them. License is then more necessary to those small time sites in order to gain trust from the audiences, and to eventually establish a name in this industry. In short a license is important to be a reputable gambling site.
A gambling license doesn't mean they can be trusted since it's easy for casinos to get them and casinos that have these license can still scam their players one example is megadice.
Even if they're just a small gambling site a license wouldn't change. A good example of a small site that doesn't have a license is windice and during their launch they still did well.
Yes, they can use the license to trick their members and run away with their money. Maybe the gambling owner can easily get the license from somewhere because I think if they have known people who can help them have the license, it'll be easy to get that license. But if the gambling site has a license, and they have a reputation on many websites, I think they will not try to trick their members because the gambling site is well-known as a reputable gambling site.
We can select the gambling site that we will use to playing gambling, and if we feel that the site is good, mostly after we read many good reviews about them, we can select that site to play gambling.
