I fail to see how sharing memes is a bad thing. Lemmy is a great community, its leagues better than what Reddit was, even in its heyday, and certainly better than the shit-buffet it has become.
While OC is great, it's really tough to make, especially at the frequency needed to provide new content and keep people interested. Further, 90% (or something) of people on here lurk, with the remaining 10% split between commentators and posters.
Don't like it? Vote with your feet.