My issue with this is not that codeberg and its members want to uphold a certain set of political beliefs. Any private organization is free to do that. It's that they haven't defined the rule that's supposed to encode those beliefs.

As written, the rule is a non-exhaustive example of "content that harms codeberg's reputation". Someone asked in the pr whether "cryptocurrency-related" is defined anywhere and it merged without an answer. The responses to wording concerns was essentially they will figure it out later. Moves like this don't fill me with confidence.

You're still not understanding the point. It's not about an organization being "private" or "public" (what does "private" even mean?). Everything is political. When you try and cleave society into things that are and aren't political, what you are doing is creating a normative set of things that aren't allowed to be challenged, on the basis of your claim that they aren't political, obscuring/obfuscating their actual underlying politics, and everything else is pushed outside of it. It is an attempt to create strict boundaries around the limits of discussion and action, which is itself a political act!