When I am busy and get multiple whispers, I tend to answer some and not all, specifically those that are either extremely important or beneficial to answer.
Also, sometimes I ignore people like imag. I don't tend to ignore cool people like materger, and as gavin/nuc said, sometimes I accidentally ignore cool people like gavin/nuc.
Tedious little questions I don't always answer because I have staff that are promoted to answer questions such as that. If they can't fix it they should come to me. I never got anything from any of my staff about you; most other things that are taken to me I take care of immediately. What's the point of having staff if everyone goes to the admin anyway?