Is it appropriate to down-vote a question because one disagrees with beliefs of the poster that are not mentioned in the question?
Is it appropriate to characterize as a "rant" a paper one has not seen, in comments under a question that doesn't mention the paper and that doesn't mention its topics?
Is it appropriate to accuse someone of "ranting in the comments" merely because one thinks that the commenter will write a paper that constitutes a "rant", when one has never seen the paper that one considers to be a "rant", and when the question under which one comments does not mention the topic of that paper?
Is it the policy of Stack Exchange to condone that behavior?
This is, as you would probably guess, not hypothetical. It was done by a person who is in the "top 0.08%" for this year (I surmise that that means in reputation points earned). The person who did all this stated explicitly in the comments that it was because of the "rant" (his word) which he had not read that he did these things. I know that he has not read that "rant", as he calls it, because I haven't written it yet. I had early posted a different question asking where would be a good place to publish a paper on widespread fraud committed by mathematics teachers. I made no attempt to make that paper's case in the question since that would be off topic; I merely asked where would be a good place to publish it. He concluded that the paper is a "rant" and that he should say so in comments under another question I posted that doesn't mention that topic.