I do know how science works. I'm rather more persuaded by those who peer reviewed the studies before publication, than the anonymous people on a notoriously transphobic forum.
If you know how science works, you are no doubt aware of the problems with peer review? It has been long in coming, but the shortcomings as well as the corruption of the process of peer review are finally being discussed publicly.
But even without being aware of these revelations, if you know how science works, you also know that peer review does not seek to ascertain whether the conclusions reached are right or wrong, but only that the authors can show how their conclusions follow from their research, that their data collection meets the field's standards, that the authors have followed their own methodology etc etc. Peer review is meant to assure that a paper is of a sufficiently high standard as a scientific work, no more, no less. It is a kind of quality control, not a mechanism to determine the veracity of the claims made.
That duty falls to those responding after peer review and publication, first in comments, letters to the editor and lengthy responses and rebuttals and then to researchers examining the same issue seeking to replicate or refute the findings. Just in case you missed it, crowd review is increasingly popular in many fields, with those who understand methodology and/or the fields themselves lending their knowledge to analyse papers on public and private forums and messageboards
If you know how science works, you know all of this of course.
So tell me, is there anything in the evidence presented to suggest (even bearing in mind that all studies have limitations) that conversion therapy is harmful to trans people?
The evidence I addressed and which you sought to provide was about the existence of a gender identity universal to all humans. As this evidence does not exist, and you have failed to provide any studies even detailing what exactly conversion therapy in regard to trans people is, I conclude that there is no answer to your question.
What I will freely say is that forced therapies of any kind tend to be harmful to those subjected to them. As you have not deigned to show how this relates to psychological treatments seeking to help those diagnosed with gender dysphoria reconcile mind and body, it remains unclear what you mean when you speak of conversion therapy.
And are there any studies at all suggesting that conversion therapy is either harmless or beneficial to trans people?
There are studies showing that psychological treatment seeking to aid someone diagnosed with gender dysphoria to reconcile mind and body is at worst harmless and at best beneficial, but I am unclear whether that is what you think of when you say conversion therapy in this regard. It would be helpful if you could explain what you mean so that I can answer properly.