I think that he just expects that, if explaining downvotes were the norm, then he would read a comment every week or so saying, “downvoted because something you said in a different thread offended me”.
Yes, although not so much ‘a comment every week or so’ as ‘a page or two every week or so’.
Yes, although not so much ‘a comment every week or so’ as ‘a page or two every week or so’.