What does it tell anyone to just heart ❤ everything?

So it's not possible that someone likes a lot of things being said on a profile? I give you an example: I befriend someone and land on their profile page. I read through their posts and they speak to me .. pretty much every single one. I do the heart thing on each of that. It's purely my experience of reading those posts and my own personal reactions. Yes those reactions are for the poster of the message. But in reality it's a conversation between me and myself. I am aware of serial likers to posts. Sometimes it can genuinely just mean hi or an acknowledgement of the existence of the post or the individual.. somethung like saying "oh you wrote, I saw!!!" .. I am discounting these aerialists from my own analysis/assessment