Reddit also has some absolutely fascist mods. For example, it's well-known that if you post anything that is against illegal immigration (and it gets too many upvotes!) /r/worldnews mods will go through and ban you after the thread dies down.

I was once banned there 48h after a polite discussion on the economic costs (citing various sources) for "hate speech". I got too many upvotes so it was noticed. Appealing to a mod resulted in him "examining my posts on other subs, and given who you voted for the ban will be permanent".

Actual hate speech is one thing, but far-left mods of major subs are using the banner of hate speech to silence well-informed opposing views.

Aside from a small number of general site-wide rules, reddit is based around the idea of "your subreddit (meaning, you're a mod of it), your rules". And nothing about it requires that every single rule be exhaustively defined up-front; moderator discretion is ultimately the sole definition of a subreddit's rules.

If you don't like a subreddit's rules, you're free to create a competing subreddit on the same topic but with different rules, and try to attract people to it.

I moderate a medium-sized (200k-ish subscribers) subreddit, though, so I know how unpopular this idea is with some people.

Is the goal changing someone's mind? Or is it making the site hospitable to more users?

Reddit doesn't care what people think, but it sure seems to care how many people are willing to use the site.