How Facebook could actually be Sociable

How Facebook could actually be Sociable.
Have you ever stumbled into a person’s pictures or statements and wanted to comment or at least click the like button?
If facebook would make it okay to click the like button on open profile pictures, facebook would actually become sociable. Otherwise you have to click the person’s profile and request to be their friend to send them a comment and that could take days or weeks. by then you forgot what the heck it was all about. but a person who logs in and sees that someone likes something, they know what it was and who it is that likes it. It is then up to the that person to initiate further interaction. This would allow the person who’s item is being liked, to know if their stuff is being publicized to the full masses. Because really, who starts the conversation ‘hey I stumbled into your pictures, you may want to hide them from the public, okay, bye bye”. but you get a like on an image you can say “oh crap, that picture was supposed to be private, I must have done something wrong, I will go fix that now”.
or add a flirt button of some sort. Sure it will get played with a bit, but it will serve it’s purpose. We need more, and it sure isn’t advertisements we need, but hey if they can add advertisements to something new, go for it, just give us something new that is fun for us.
We date. We look for people to date. No facebook isn’t a dating site, but it sure could have a side option.