>you can force people to marry, but you can't make them care about each other
That's incorrect. Arranged marriages are forced in some sense, but people do come around to care. Put a man and woman together in captivity and they start caring for each other. That's how human nature is.
And regarding the gunpoint thing, there's something called Bride kidnapping in central asia. Ofcourse those brides cry for first few days or so, but eventually settle in, with equal or probably more happiness than the women of the so called free world.
It's legal if you have the will. Most men don't want to meet prostitute. I think they have the desire to be desired, for what they are, and not for their wallet.
>4chan is not just an image board, but an intelligence service too.
Let's not go too far, Pizzagate and QAnon started on 4chan as well. Calling it an "intelligence service" implies a degree of agency or purpose that 4chan doesn't have, or even care about.
It's obvious greed. There is no need to violate people's privacy for the ISP. Which you yourself point out. They don't do it out of need, but because they can.
