* This is one of the most factual, well written articles that I've encountered on the subject.
* It's just sad to see socially awkward people manifest their sexual frustration in this manner. And it's even sadder to see that the few women we have in our profession feel threatened at conferences. The overwhelming majority of good people need to intervene to interrupt any form of harassment towards anyone and above all report them to whoever appropriate.
* It's important to remember that sexual harassment is not simple unwanted attention from someone you find unattractive. magamiako deleted his comment, but he was right on the money when he said that certain actions will be interpreted as innocuous flirting if the person perpetuating it is attractive, and as harassment if their are not. It may not be PC to say this, but it's important to distinguish unpleasant, but fundamentally innocuos flirting from awkward people, from bona fide sexual harassment like groping or inappropriate touching. The latter must be eliminated from tech conferences.
* Sexism and unprofessionalism can be avoided without being prudish about the content of your presentation. This is a slide I used in one of my Italian presentations. The title reads "Eye candy is important": http://grab.by/grabs/bd8b294c0aa850b4b577012a258979a3.png (Actual slides here: http://www.slideshare.net/antonio.cangiano/tu-vu-fa-lamerica...). This was just after the "CouchDB performs like a porn star" scandal, and several women at the conference complimented me for pulling it off without objectifying anyone.