This is most likely targeted at the onlyfans kinda "internet sex worker" who sell zip archives or lewd images and videos.
This lets "content creator" circumvent the platform fees that come with selling over platforms like onlyfans.
But on the other hand, this might be a plausible deniability sort of thing. This way paidlink.to doesn't host anything, they don't even say what it is that they're going to direct the user to. This might be an attempt to keep payment processors off their back as long as possible.
It may not work forever but since next to nothing is being provided, this site is extremely cheap to setup and run, which means it won't take long to pay off.