I'm 50% LWNJ and 50% RWNJ.
I think it is very harmful, and I also think the possibility of it having escaped a lab is plausible. I think more than likely it came from nature, but holy smokes it's a coincidence that ground zero of the outbreak is literally a few metres down the road from a lab which studies coronavirus.
Li-Meng Yan's paper seems fairly well argued to me.
https://zenodo.org/record/4028830#.X19xByXZglRI'm yet to see the paper challenged on its merits. It may well be full of holes (much of it goes over my head), so I don't want to take it as gospel, but I don't think it should be automatically discounted either (let alone censored).
If it did escape the lab, I think its release would have been accidental, as it seems absurd that you would deliberately release a contagious virus within your own country.