[s1k3s]

I don't think you can be concise about it. It just feels weird to ask someone you've never met to come up with stuff that sucks about their job, as people will either ignore you or just make up a bunch of things out of politeness.

And even if they do answer you, it's a bad idea to commit to those answers. There's a book written specifically about this (The Mom Test), but the point is: asking people about their problems is not a good way to validate a startup idea.