Isn't the internet a social network? Get a website. put vacation photos up. no ads. use AI to add chat, messaging, blogging, discussion forums, and a web ring. why do things like facebook/myspace exist at all?
Sure, you can get a website and put whatever you want there. But it simply won't get any meaningful amount of visitors. (By contrast, early-millennium web content was popular enough that real-life subcultures could bond over following the same blogs and other sites.)