A bit better way to explain this type of marketing: make a bond with the customer before asking him to pay.
You know, like Ahrefs (came into my mind from last day's thread). They have two free options actually:
Not signed in option:
https://ahrefs.com/site-explorer/ove...target=gfy.com
Signed in option:
https://ahrefs.com/registration/choose-your-plan
Porn sites already use this model and with the same way as Ahrefs; for example Chaturbate. Though their free signup doesn't really bring that much benefits.