This is precisely what I did in the post you are referring to.
> If you know more, that's wonderful, but please share what you know in the spirit of helping everybody learn, not putting other people down.
I wasn't aware that these discussions are meant to be records for collective learning. I have been framing my replies as responses to particular positions, held and presented by particular people. In almost all situations I target the ideas presented and not the individuals, the exception being the comment you highlighted above. I definitely should have been more respectful in that instance. But I disagree with the notion that I've been trolling or making pointless personal attacks (even in that one case, I expanded upon my reasoning in lots of detail).