Well, I know what you mean about the way that questions are asked. I've had some that quite annoyed me. One person gave me a lecture on why I didn't have more stamps listed yet.
Also, I find that many are so terse that the tone comes across as rude. I guess that is a sign of the times and, in some cases, may be due to the fact that they are tapping out a question or answer on their mobile device.
But, I still answer them anyway, even if I consider the query to be on the rude side.
Of course, the choice to answer or not is up to each seller.
On the other hand, I often get the impression that the actions of each individual seller tends to reflect on eBid and the sellers here in general.