When I see politics in software updates or documentation, nothing happens because I'm not looking to use the software for political activism. Maybe I tell my adblocker to remove the messaging, and carry on with my task.
I can engage with politics in a social context, when political messaging isn't interrupting something else I'm doing; that's a better place for activism, IMHO.
I almost always see activists using the argument that if I don't like the messaging then I'm part of the problem. Somehow I doubt that, given I don't mind messaging at all, where it's appropriate.
So, while I fully agree with your stance that banning political discourse is support for the status quo, I also think that it's reasonable to ask for it to be toned down a bit, especially when the politics and social issues of one country is basically drowning out everything else.
All that said, I'm talking mostly about HN or other community forums here. The owner of Notepad++ has the right to put whatever they want into their software, and if we're discussing that here on HN then it's an occasion where discussing politics is valid.
I don’t agree with them and I don’t think they should be in my software, or dealing with anything they don’t understand (for instance crime, homeless people, geopolitics, or really anything outside of overpriced vegan coffee shops). All they really do is end up getting Fox News people to vote for fascists like Trump out of spite