It's unclear what your definition of harm is. It sounds like you take it to mean only physical harm, and not e.g. psychological harm? Are death threats or racist/sexist abuse harmful or not?
Hopefully the poster finally explains why _their_ definition of harm which excludes emotional harm, should be considered an authoritative definition, and others' should not
It does indeed seem like their entire view on this issue depends on said definition of theirs being correct, because if it isn't, the view completely falls apart. And yet, they haven't well explained _why_ it's correct
