A podcaster could bump up their own rank by sending boosts to themselves using another account. That's just like how on SN a person can upvote their own posts using an additional account(s). Fountain takes 10%, so this tactic isn't free but is a way a podcaster skew the results in their favor. Maybe if Fountain incorporated some formula that considers the number of users who have boosted instead of just the amounts of those boosts would yield more accurate results?
Also, I wish Fountain provided a way to export the list of podcasts I am subscribed to. I have seen posts here on SN asking for list of Bitcoin- (and "crypto") related podcasts and I'ld like an easier way to update my list.