Bounty campaigns with millions dollars pool always make me suspicious. Actually, I have participated in some of these campaigns but I received almost nothing. For those projects, they deliberately offered great rewards just to attract inexperienced hunters.
Big pot doesnt mean huge reward. The payment is in tokens which doesnt have value yet and seeing a budget with impossible rewards are highly suspicious.
I have also felt that the project you mentioned is not good, so I did not join the bounty. Especially with Ripple Decentralized, without any tilted news they seemed to want to take over Ripple easily.
This one is highly suspicious, I dont even know if Ripple even aware with these guys using their name as fork of this new bounty. Rewards is also high since it will fork xrp coins but the value will be different from the original surely. We will see. Even team profile has none. Beware!