It's build in already. Just unsubscribe from shitty subreddits and subscribe to quality ones.
The mods from quality subreddits are pretty fierce on enforcing rules against memes/low quality comments/etc.
The mods from quality subreddits are pretty fierce on enforcing rules against memes/low quality comments/etc.
This doesn't work on r/all, which is a great place to find new content you haven't discovered yet.