Bitsler is old site in crypto, I think they had signature campaign here (I am not sure about this). I know I saw it many times, but I never tried Bitsler. Anyway I like what I saw and I would like to give it a try, but let me ask you Efi, can I register from your site, so I can be your referral? It would be good for you, and it can be good for me if you have some special promotions for people who try it from your site?
I am not in a hurry, so I will wait for your response about this matter!

My original idea went in the same direction with the popup, yes. Just like when you look at an article on Amazon and get the suggestions below with "Other users bought this too" or when you see suggestions on Netflix/Amazon Prime which series are similar or you might like.

One would need however criteria with the individual casinos to classify these, you do this however already partly I think? At least this would be a simple categorization:

~snip

I also like your idea of an own "Find me similar casinos" page very much, even if it is more complicated to implement. This gives users the opportunity to search for specific criteria that they like and get targeted suggestions. These data can of course also be marketed anonymously to the casinos, since they certainly value knowing what is asked for by the BTCGosu users and what, for example, is most often searched and filtered.