It might be used by coins for proof of work ... but one can’t really influence the projects/WU being assigned beyond saying beta, adv, normal and choosing a slot ... project-based challenge might be tough. CPU can GPU challenge would be possible
Plus I fear the data privacy laws will kill it , opt-in/out FAH can’t really control As they don’t have classical user accounts. Yeah, let see how it will continue. At least one see some fresh wind blowing in FAH