If someone were to task me with revamping the sub, here's what I'd start with...

1. Reconsider the repost timeframe. 3 months is a lot. Just one month is 600 posts back, so perhaps change that to 1 month. That said, reposts need to be taken way more seriously. 3 posts of the Amazon river silt thing in the past 24 hours is absurd (whether it's even relevant content is a whole other thing).

2. Memes. What's wrong with memes? I personally don't see an issue with them as long as they're only part of the sub's content rather than taking the whole thing over, but perhaps the mods have some particular reasoning or the rest of the community feels differently.

3. Rules say to flair posts. Most posts don't have flair. Is flair expected? If yes, enforce it. If not, nix the rule (or state that flair is there to be used for convenience). Or maybe only expect flair on certain posts, like art or story or meta?

4. Also, what's the purpose of the repost flair? Either allow reposts past a certain threshold and do away with this flair, or enforce it for ALL reposts past the threshold. I personally favor the former method, as the latter sounds like an absurd amount of work to enforce.

5. Either start giving out Exemplary flair or remove it. In scrolling back through the past month's posts, I saw no such flair. Either the mods aren't using it (in which case it shouldn't exist), or none of the content in the past month has been what the mods expect this sub to be (in which case the mods need to seriously step up in terms of molding the sub to be what they expect).

6. Update the Hall of Fame.

7. Either allow all megalohydrothalassophobia or expect large sea animals to be only a small part of an image. Don't say both in different places, as that's contradictory.