> stop taking advantage of others weaknesses

What does it mean to have a weakness for purchasing T-shirts that read ”PTSD: Pretty Tired of Stupid Democrats”? That's not predatory; they're paying money for a t-shirt and (presumably) receiving said t-shirt.

Or for their Fanvue account, they're paying money to receive soft-core pornography, and they are receiving soft-core pornography.

This isn't a scam—they're paying money for a thing, and are receiving that thing. I could say "well, that's not a great thing to be spending money on", and it's not, but I don't think of sellers of off-color t-shirts as something that people need to be protected from.