Not to sound like an old man, but some of the newer members don't seem to get the idea of responding to comments. I've seen memes make the front page with x number of views and upvotes and the originator doesn't respond to the comments. But generally I think that might have to do with those not understanding how it works. You create, and then you go look at others' creations and comment. Some don't care, some don't get it. It might just be a generational shift. Heck, and I've only been on here about a year and a half. :P