OP, focus your attention on these casinos that are truly rigged:
bitcasino.io
4grinz.com
vegascasino.io
mbitcasino.com
They all use the coingaming.io platform and all of them besides vegascasino.io have topics here. primedice is provably fair and can be proven. i do not even play dice sites and i know that. go after the true scammers.
In my opinion.
Damn man! How the hell did I won 4 btc from bitcasino in 2 days,I must have been a magician