Sigh. I was worried I'd see this comment when I clicked "discuss". Look, I think having a dance performance at your tech conference is a bit silly. But so what? It's definitely not actively bad, it's not like it's somehow mandatory if you attend the conference, and a lot of people there might like it. Also, you seem to be saying, "this is a tech conference; no girl stuff allowed!" Just relax; not everything at every conference needs to revved up on testosterone.