Done research on your casino and found out that you are not a new casino, domain was registered in 2011 and you have one review back in 2018.
Why now after all these years why register now and decide to promote on Bitcointalk, anyway I'm sure the Bitcointalk community will welcome you with open arms since I have not yet found a complaint against RioBet Casino.
You would get more information about Riobet casino if you have done your research through this forum search feature

. BTW, Riobet is an old casino. They had an announcement thread here
Casino RioBet SPECIAL NO DEPOSIT BONUS 20mBtc (50x wager!).
‘Eureka_07’ had created a thread about this casino in last year and many of us has joined in the discussion during the time.
Asking About Riobet CasinoHello! Interesting) Probably that's someone from our affiliates. This thread is official, by casino representative. But anyway, true, we are an old casino)