I think this is a proper rejoinder to anyone who attacks you or accuses you of hating them, or tries to shame you for commenting, when you publicly disagree with something that they have publicly stated/written/published.
From Meg Stout: (Her comment of July 23, 2014, 5:25 am, if the link does not take you directly there.)
” … to openly attack and demean the organization from which one has parted makes the matter public record.
And when something is a matter of public record, it appears within my [F]irst [A]mendment rights to comment on the public record. As it is within your rights to comment on my comment. However it is not within your rights to force the owners of [a blog or forum] to give you bandwidth on their website. “