Those are all good questions that I don't have the answer to.

I know I didn't make the original claim, I just took issue with the initial reply as I felt like it was removing nuance from the discussion. My reply didn't really add much and I probably shouldn't have made it, so I'll try to add something to the discussion below:

For me, I think, it comes down to whether or not something is presented as an opinion or as fact/truth. There's far too many opinion pieces presented as news these days and a lot of people have trouble processing that.

A headline or claim like "China manufactured this virus as a bio weapon to attack the united states!" at the beginning of a pandemic when no one has any information yet is bad.

Discussing whether or not it could have been a lab leak and whether or not it was manufactured is a different thing, and whether it was or was not an attack are acceptable topics, though, I think.

How you actually enforce this I have no idea and I know it's easy to go down the rabbit hole of "who watches the watchers."