But to play the Devil's advocate, if this person doesn't do this, wouldn't someone else? I mean, in a market with such a great demand, how can you ever detract users from this?
While we can both agree on the detriments this can have on people's lives, what can one person do to fix it? I know that not building this sort of site is a start, but you do have to understand that whether or not this person does this, the world will be roughly the exact same.
Censorship can't be the answer either, as that trades one negative aspect for another, and there's also good evidence to suggest that there are some good from porn sites (people in relationships stimulating it?).
Anyway, I guess what I'm asking is, how do we fix this problem, without trying to tell someone to avoid making money? Because that's not going to work IMO.