>>2218523At the most basic level, it's a satisfaction of your existence being recognized. Of your input being valuable to someone. Of your existence not being meaningless, that you didn't just scream into the void, that someone answered. The rush is way better if that someone is someone you adore and want to be recognized by.
Social media is all about this shit. Likes on FB or youtube, hearts on twitter, (You)s on 4chan.
Of course, I'm not saying she doesn't care. She's a good person, if she liked a comment then she read it and it made her happy. But there's a whole lot of comments like that.
