I don't often do this, but (non-anecdotal) citation needed.
1. http://www.networkworld.com/community/blog/there-sexual-hara...
But you're using the word "typical". It connotes that such harassment is not only regular, but expected if a woman attends a conference. Nothing you've linked to (and nothing they've linked to from what I've read) supports the position that sexual harassment is activity that a woman should expect to be typical when going to these conferences.
Do they happen more than any of us would like? Most definitely. I agree it's a problem. I disagree that it's a typical problem.
It can be interesting to poll your own network, although guys often have to get to a fairly deep level of trust before women will discuss it with them.
It really is no more complicated than this: do what you love, and fuck everyone else.
I mean it when I say I would love to see more female programmers. But it doesn't help anyone by trying to argue it's all the boys' fault there are no women in tech.
If more women were interested in esoteric technical subjects like computer programming or engineering, they would do them. It's that simple. It just so happens there are more guys who are interested in these things.
The long-term solution is to get more girls (HS and younger) interested in programming and so on.
Edit: probably unnecessary clarifications in italics.