I think the bigger point, above free speech, was that running a social network is hard, and Musk will fail at it, regardless of what his "goal" is, unless his goal is to run it into the ground.
A good example of this is comments on this post. They're basically awful and reduce worthwhile traffic on this site by driving away more people than they attract.
The reality of every forum, as the original author says, is that unless you censor topics that attract cranks, you'll eventually become a qanon platform (or the equivalent) and drive out all worthwhile participants.
I'm not sure what the global rule is called, but something like volume nonlinearity or kookiness asymmetry it something. If you have a bunch of looks everyone else leaves. You're options are to get rid of them or fail. It sucks but there it is.
