I expected click fraud, but if the description is accurate (and I don't have much of a reason to believe it isn't, since it describes pretty shady activity if y

I expected click fraud, but if the description is accurate (and I don't have much of a reason to believe it isn't, since it describes pretty shady activity if you read between the lines), they're using the accounts to post shady ads that Facebook doesn't allow (and bans accounts for) until the account gets banned. Also, the participant is supposed to get paid after they send the Raspberry Pi back after the account got banned, i.e. once the user has absolutely zero value for the scammer... I don't see why the scammer would pay... (although it may be chump change compared to the money they make from getting a percentage of the ad spend, so maybe it's worth paying that to get a better reputation).