Well, there are a handful of physical casinos that I'm playing on during the weekends which are obviously not on this forum. Some other online casinos that focuses on slots that use fiat for deposit, too. Those do not qualify as they are only small-time casinos that are unregulated but man, the amount of people that they can rake in at a given time is still impressive.
As a rule of thumb though, if I see a crypto casino that is not advertising its business in bitcointalk, I tend to avoid them at all costs. There is a reason why they do not choose this forum as a platform to announce that their business is existing. I might be wrong in so many levels but that's just based on my experience in the years that I've been gambling with crypto.
Yes, I agree with you!
If an online casino allows you to replenish a deposit in cryptocurrency, then it is simply obliged to carry out its advertising campaigns on the Bitcointalk forum. It's a matter of prestige.
The Bitcointalk forum is the oldest and most authoritative of all cryptocurrency forums (in particular, the first cryptocurrency - Bitcoin). The Bitcointalk forum was founded by Satoshi Nakamoto (the legendary creator of Bitcoin). The online gambling industry is based on trust.
Reputation is the most important issue for any online casino.
Therefore, the presence on the Bitcointalk forum is a must for any online casino.