Stretching terms like "sexual harassment" to apply them to more people doesn't do good. It weakens them when they are used in the proper context. There no reason to call everything that's not acceptable public conduct "sexual harassment".

Steve Landsburg justified and participated in calling someone a lot of sexual slurs

Still false. Easily verifiably, objectively, false.

At best, you have a reckless disregard for the truth. I'm out.

EDIT: Just to be clear for others reading this, the post has never been deleted, so anyone can check it right here. Landsburg does not call Fluke either a slut or a prostitute. He calls her an “extortionist with an overweening sense of entitlement” which is no compliment, but not a sexual slur. You will note that even Noah Smith, in his vile hit piece, does not accuse Landsburg of sexual slurs. Instead he says that Landsburg 'seemed to call pro-contraception activist Sandra Fluke a “prostitute"' (italics mine). Why this "seemed"? Because if you read the post, you'll note that Landsburg explicitly stated that calling Fluke a prostitute was wrong! Yet people who I can only assume engaged in deliberate misreading used it to accuse him of calling her a prostitute, and Smith now piggybacks on those accusations to say "seemed" about a statement that he knows is a tawdry lie - but by using that word, he can claim he never said anything false himself.

It's disgusting, and Smith, and you, should be ashamed of yourselves.

Landsburg's behavior was still detestable and vile

I think falsely accusing someone of sexual harassment is detestable and vile.