I just encountered the type of example that I often struggle with, and so that is a good opportunity to describe my train of thought.
If you open the !academia@mander.xyz community right now, this is what you will see:

Post #1 has 'Trump' in the title, which is causing Trump to be featured at the top of Mander's front page. Posts 2 and 3 are about a highly polarizing subject that has become politicized, and the fifth post is about the pentagon cutting federal funding - which is also highly political.
These are true:
- These posts are political
- These posts are highly relevant to an 'academia' community
- I have not been good at creating guidelines for the community, as the sidebar is empty
So, the options that come to my mind are:
- Accept politics in general whenever relevant
- If no one reports, then no one minds, so just let it go. If someone reports, remove it
- Create some general rule that if 'White House' or 'Trump' is in a title, remove it. This at least keeps posts with ‘Trump’ in the title off Mander’s local page, which is a common source of annoyance for me, and I suspect for others as well.
- Remove the Academia community because it is a spot where politics infiltrate. I do not like this solution because politics infiltrates on many valuable topics, not only one.
- Define a set of guidelines that creates a perfect filter and make the effort to implement it fairly. This is difficult both at the design stage and the implementation.
- Apply a very strong politics filter and if I can even smell a political angle, remove it. This approach likely invites pushback, which I cannot reply to with more 'that's the rule, have a nice day' unless I want to spend all my energy discussing. I have considered this because I think that, even if unpopular, there is a minority with whom this concept would resonate and so they would appreciate having that space.
There are many more options that I did not list. I just wanted to give you a concrete example of my reasoning.
I want topic communities to remain useful even when their subject intersects politics, but I also want Mander to be a space where political discourse does not continuously colonize unrelated interests. I don't know how to draw a boundary that is both predictable and enforceable.