"It's a common thing here in the comments section to forget *we* are not the target market"
I see this comment from time to time but I don't think it's true, for the most part. Most people here are well aware that they aren't representative of the general public. The comment you're replying to doesn't imply that he thinks he's representative, either. He's expressing genuine confusion about why people would buy this thing, which implicitly admits that he isn't.
All that said, Facebook is consistently losing users, particularly those who are under 30 -- so I think the general public is actually starting to become aware that Facebook is a bad deal and should be avoided.