I like answering questions for people so I'm in this section all the time. I should be writing hubs but answering questions is just so much simpler.
Answering questions also gives me great ideas for hubs and I use the "make a hub about it" button quite a lot when answering questions. This is great because then the question gets answered, I get a hub, and my readers get information.
I almost never ask questions because it's usually just easier to google it. I only ask questions if I need opinionated information.