I think I've noticed some of what you're talking about? Specifically, many articles feature the opinions of a user, rather than documenting the opinions of the community; some pages are either more specific versions of a preexisting aesthetic, the same aesthetic, or the personal aesthetic of their creator. Most of the articles don't have any sections on the history or development of the aesthetic, and there's usually no mention of any sort of philosophy. Many of the pages are just about things that people like, such as Bunnycore, Cloudcore, or Foxcore.
For a while I assumed I was just imagining these issues, so it's really validating to hear this from you, being the creator of the Wiki.
I also want to apologize if I've contributed to these problems. I'll try harder from now on to recognize and rectify them when possible. :)