This week, while browsing through the site, I happened to come across two of moderator Brian Towers' answers (1, 2). I disagreed with large parts (though not all) of the points raised within, and thought that they were grossly misleading, especially considering the large number of upvotes they had garnered, which seems to be an indication of the number of people who thought they were good answers. I felt so strongly, in fact, that I left critical comments beneath both answers that explained clearly why I felt that the answers were incorrect and misleading.
I did so with two reasons. First, I expected that any reasonable user (let alone a moderator of this site) seeing critical comments below their answer would respond to the criticisms, either explaining why they thought I was wrong, or agreeing with my criticisms and therefore improving the answer. In both cases, somebody learns something, and positive benefit is to be had. Secondly, I believed that, if left uncorrected, these answers risk to mislead readers and damage, in a nontrivial way, the quality of answers on this site and therefore its reputation as a place to seek high-quality answers to questions about chess.
It did not take long before my comments beneath both of the answers were deleted. When I asked about the reason behind the deletion, Brian Towers responded: "You're right. I should have flagged as rude or abusive first". They have since deleted this comment, which is why it is now unviewable, prompting the question of why the moderator felt the need to do so if they truly believed in this justification.
I view this as a critical abuse of power by the moderator in deleting comments which are not in favour of his answers. I am asking this question on Meta to ask for the moderator to hold accountability for his actions and to be transparent in justifying his actions instead of sweeping it under the rug.
I would also ask whether the community at large accepts this sort of behaviour, because if it does, perhaps it is not one that I want to be a part of any longer.
It is true that the comments were rather strongly worded. I do not have the exact wording of the full comments, since I cannot refer to them anymore, given the moderator's actions, but wording such as that the answer was "odd and misleading", as well as the perspective in the answer being "naive" were used. However, the comments never personally attacked or abused the moderator themselves, and the criticism was directed only squarely at the (in my view) completely misguided answers with the potential to mislead. Yes, I agree that this phrasing could be interpreted as unfriendly. However, I staunchly believe that strong language, within the realm of civility, is necessary and productive for discourse to gain a deeper appreciation of any issue. The actions of the moderator appear to violate the principles of free speech.
It seems that similar behaviour has occurred before with the same moderator. Since this is clearly an established pattern of behaviour, and if the wider community agrees that this is an issue, I wonder if anything can be done to hold the moderator to account.
Edit: It seems to have happened again, ironically beneath this very post! A comment pointed out Brian Towers' past abusive language in his answer to this question, as well as how he deleted valuable comments that pointed out objective flaws with his reasoning (and carried additional insightful remarks) on that occasion. To silence even this criticism, Brian Towers appears to have deleted the comment beneath this meta post. This shameless behaviour must be stopped!