Security conferences != dating scene
malwarejake.blogspot.com
malwarejake.blogspot.com
It could happen that one might meet someone irl, too. If you're attending a social event--and defcon parties are social events--you can expect to interact with people socially, and the same social rules apply.
The author fairly acknowledges that this is nothing more than a rant, but I don't think this belongs here without some accompanying specifics; either accounts of undesirable situations or advice on handling them.
I agree with the sentiment though. We could do with more restrained alcohol consumption at tech events, it would improve quite a few things.