In a system where anyone can talk to anyone, for free, natural human tendencies are going to result in the vast majority of traffic being ads for sex, drugs, or salty carbohydrates.
Social networking needs moderation and filtering, because there are always going to be people who don't respect the time of others. Email just happened to be the first online social network, followed by usenet (which had killfiles).
There's going to be filtering. The only question is do you want it to be a small number of large, unaccountable corporations (and the governments that can put guns in the faces of their sysadmins), or "everyone who cares to, and you can pick"?
Social networking needs moderation and filtering, because there are always going to be people who don't respect the time of others. Email just happened to be the first online social network, followed by usenet (which had killfiles).
There's going to be filtering. The only question is do you want it to be a small number of large, unaccountable corporations (and the governments that can put guns in the faces of their sysadmins), or "everyone who cares to, and you can pick"?