Any wonder I usually have the right thing to say. JD say 2/3 of the memes that make page one are rehashed Borscht Belt jokes. Is that bad? No, because that shows the jokes have been tried, tested, and successful for generations. Original stuff? It's got to be contemporary and part of popular culture. Relateable. One reason Bad Luck Brian does so well here is we can all read them and say, "yeah, that'd be my luck". Most of the haters lack the maturity to be funny for a large audience. Which is world wide, too boot. Watching Anime shows, I see different cultures. It helps me see and understand world wide humor. Not everything that's funny in, say, Kentucky, is going to be found funny in Belgium.
But there are plenty of universal themes. I'll upvote a " that look you give when your math teacher.. " than a "Jenny has cooties" meme. Gamer memes, I ignore because I'm not a gamer. Correction, I got to page two with a meme about solitaire.