I didn't say there was no value in convenience. Of course there is. I use email. I'm posting here instead of xeroxing and snail mailing what I write. But HN isn't trying to monetize my personal information, and it isn't trying to be my only portal to the Internet.
Yes, AOL in its heyday brought lots of people online--and made them think that going through AOL was the only way to get online. Facebook has brought a lot of people social networking--and has made them think that allowing Facebook to monetize their private information is the only way to do social networking. They are encouraging people to choose short-term convenience at the expense of long-term control over their own data and their own online lives.
My point is that saying "lots of people use Facebook" is not the same thing as saying "Facebook is doing things that are good for its users, or the Internet, or society, all things considered". Same for s/Facebook/AOL/.