Every single sub-reddit will, at some point after its first few users, need to decide if it will be a meme/image macro sub, or not. Every sub that implicitly allows memes, will eventually become a meme sub if the mods choose to do nothing. It seems there are large numbers of users on Reddit that feel entitled to let "upvotes and downvotes" be the ultimate and only modding that should happen on a sub-reddit. These users will balk at any notion of getting rid of memes because "what else is there to discuss"? For them, the worst thing to happen to their feed is for there not to be a huge dearth of mindless content to consume which is heavily remixed and re-used all over the site every single time they login.
They will also deny that any sub that allows memes will somehow then "become a meme sub". They seem willfully ignorant of what happens to meme subs, and seem to think "if people upvote it, then that means they want it", ignoring how the people who upvote most frequently and the lowest quality content are those that rapidly consume meme content.
Reddit is ruined by these super passive consumers of memes. Not anti-intellectualism, but just those that want to go to reddit, see funny shit, upvote it all, and then get on with their day. And they demand to see that EVERYWHERE.