mdlevine:
I think you are wrong, and here is why. Firstly, like you correctly indicate, kanuis has its place and who are we simpletons to judge if someone is a kosher kanuy like Pinchus?
But the thing I must disagree with you is, that any comment on this blog could constitute ‘kanuis.’ Kanuis must constitute an action, not a blog comment. The negatively throwing around the term and calling anyone you disagree with a kanuy, is grossly overabused to the point it loses all meaning.
Now what a comment could constitute, is tochahcha. And unless you think the person cannot be influenced for the better, tochacha is a good thing.