> Could you provide an example of free expression, not committed to either "enlarging understanding" or "uncovering truth", that would be part of a useful conversation?

"wanna fuck?"

Now I get to watch you and others try to backpedal "enlarging understanding" to simply mean communicate so that the above expression can fall into it, otherwise you're clearly wrong.

But no human is going to use the phrase "enlarging understanding" to simply mean communication, so I'm not going to buy it.