stay away from Crowdbucks, it's a fairly obvious scam from a vibe coding bro, attempting to affinity-fraud the fediverse
https://social.treehouse.systems/@pndc/115754644730600288
https://s.basspistol.org/notes/agipgklzy9
EDIT: and from a few months ago https://social.chinwag.org/@mike/115065539228280008
the guy is Charles Iliya Krempeaux, his past history is an assortment of dodgy Canadian fintechs and being a "startup entrepreneur", this is his attempt to monetise the fediverse. when it goes south, he's rich enough to leave you dangling. as those foolish enough to sign up have discovered, it already doesn't actually work.
on the plus side, it isn't literally crypto. on the minus side, it just smells like it.