I think we can all related to this gambler, with a bet of just $1.00 and turns it into $5k.
Everyone may have this chance, with the skill of course, but winning and getting that much with a $1 wager is wow...although this is not a jackpot, I am sure that the reward really gives a high influence to the player.
I haven't tried rollbit yet but I find your post interesting, I might check it later today but if you would kindly post the link of the youtube vlog you mentioned?
I tried to search for the video but I am not sure finding it. However at least, several big and famous gamers YouTubers have reviewed Rollbit since a year ago. You may check like here:
Sparkles (2.08M subscribers)Prodigy (202K subscribers)and many others.
(can anyone suggest where I can find information on the details of the rank system and Rollbit prizes)? I can see that their Twitter account has 32,000 followers, which seems like a good sign to me considering it's only been a year.
Maybe you can find here on their FAQ about the rewards, bonuses, and some other information
https://rollbit.com/faq