May I know what is the point of boycotting those casinos? Do you think the Russian economy will be affected due to this? Just the owners of those casinos will get hit who may also against Putin's decisions. Anyway, it's good to know the casino operators from Russia are on a list and there are some scam sites are there should be avoided at any cost.
I also don't get the point of boycotting those casinos because I believe that it wouldn't affect Russia too much. It still won't change the fact that Russia could break down Ukraine. It might have an impact on those sites' owners and users but it doesn't have a big impact on the whole country. The conflict should be fixed by the government and boycotting won't affect them that much.