Any content moderation needs to extend beyond "Legal? (Y/N)" unless your main goal is to drive any real community away.
Anyway, it is simply shocking that so many think it is the 'correct way' to disallow what they don't agree with and that they are, like you, so aggressive about it to the point of shutting down any dissenting opinions, as is happening here.
It's a big regression from the heights of the enlightenment, or just the recent past, IMHO.
Some would go as far as claiming that this is "little red guard" behaviour and they wouldn't be completely wrong.
Good day.
Or r/conservative banning people who have posted on any one of a number of other subreddits, sometimes before they've even posted in r/conservative?
Edit:
Not only that but also transparently disingenuous. I don't know r/conservative (my comments are not about liberal vs conservative and I find odd that you and others immediately frame them that way) but a dedicated 'conservative' subreddit is obviously not the same as Twitter, which, again as become the de facto standard for most political and news communication.
I think most reasonable people would reject the assertion that twitter is the de facto standard. It isn't even in the top 10 for social media platforms by active monthly users, and usage and value of a platform varies way too much depending on age and gender. While twitter is possibly the de facto standard for gen-x + millennials and certain career groups such as politicians and journalists, it certainly won't be for 18-25 year olds. Facebook still has nearly 10x the monthly active users of twitter, in fact Twitter barely beats out Quora.
Ignoring the argument about it being the de facto standard, Twitter is a business. I expect that Elon would like to make money off of his $44B investment. In the battle between the free market and free speech, the free market will almost always win. If twitter goes the extreme free speech route, users who are often targeted by loud jerks, trolls and harassers will leave the platform. It will create bad press both in the form of people complaining about harassment as well as other businesses pulling ads where their customers or potential customers were harassed.
I notice you didn't mention Parler, though. That one's a bit harder to dance around. The "Premier Global Free Speech App". Surely that should allow all legal speech, right?
What I'm asking you is if you think that those forums should also be required to say "Legal (Y/N)?" and if not, why not?