A lot of people either don't care or don't see very many memes because I see them on the front page or near it all the time. Jokes always get passed around, I used one my daughter told me one time and got told it was a repost even though I made the template I used for it. I personally try to be as original as possible, and I believe there is such a thing as people having close to the same idea sometimes. But if I'm being honest I must also say there is a lot of blatant straight up meme copying that goes on. I try to ignore it, I figure if it gets a lot of upvotes then those people enjoyed it, so who am I to judge. I can only control what I like and what kind of memes I make, if people want to copy stuff because they can't think up an original thought oh well. You can't make people not upvote them, if you call them on it to try and let them know it's an obvious repost a lot of people around here will actually turn on you not the reposter. So it's really not worth the trouble of caring about it, only thing you can do is downvote it and move on to more original content ;)