[nightski]

This is so not true. Suits are heavily discriminated against in our industry. If you wear a suit to a conference you probably won't get much attention.

EDIT: I must go to the wrong programming conferences, never see suits. Wish the down voters would just share their experiences!

[Bahamut]

I did not downvote, but I personally don't have any issues with people wearing suits - wear what you like. Only thing I've disliked seeing are popped collars, but more as a warning sign to stay away from the people wearing them if I can help it.

I also do not penalize for dress during interviews either. It's a distraction from the important things, and irrelevant to the answers to the questions of coding ability and culture fit.

[Roboprog]

Depends. Am I at an H/P conference, or Atlassian? Different crowds.

Aside: Atlassian is more interesting. H/P has better food.