If you ask somebody a question face to face, it puts them under great pressure to reply. There are very few people who can easily withstand that pressure, so you nearly always get a reply of one sort or another.
(Helen, my ex, is about the only person I’ve ever known who seems to find it easy to resist. She writes a response in her eyes, and they generally say one of three things:
a) That question is too stupid to warrant any time and effort on my part.
b) I don’t know the answer, so I’m not here. Go away.
c) I know the answer but I don’t want to give it to you, so you’ll have to do without.
Helen’s a real one-off.)
The point of the post, though, is to remark that no such pressure exists with internet communication. If somebody doesn’t want to answer a question posed in an e-mail or a blog comment, all they have to do is not click the ‘send’ button. I find that frustrating because not only am I denied the answer, I’m even denied the reason why the person is declining to answer. So then I start guessing, and we all know where guessing can lead. It’s why I always answer people’s questions.