I've given one and am probably going to give another talk tomorrow that might in some ways make some people uncomfortable by posing some things that aren't fun to hear as a member of that community (of which I'm a member, and where it might not be fun for me either)?
It's a lot of responsibility when doing something like that; sometimes it is important but it's too easy to do it wrong. I want to keep people motivated even when laying out challenges in a space.
I hope I don't mess it up.