I dont know if Reddit has always been like this, but it is now. Essentially 90% of all top level comments are some dumbass joke, or some pop culture reference, or some winking cutesie reply. It makes me sick just thinking about it. I'm not saying it all has to be high minded essays for every comment, but what you have now is the equivalent of elementary school playground talk. Grow the fuck up.
It was like that before, but the jokes were in-jokes that made it feel like a community, e.g. a reference to bacon, narwhals, or some other nonsense. This was interspersed with genuinely thoughtful replies. Eventually the site got too big, the LCD quips won out and the conversation became junk food for the mind.