As a regular user I ask this question politely; but please tell me why so many SE regulars are in such a hurry to edit other people's questions?
Excuse my cynisism, but is this just a self-serving opportunity to earn points or badges?
Whilst this practice may be helpful from time to time to help clarify a confused question, I must say in very strong terms, that more usually it might be better described as pedantic meddling.
If people really want to contribute to the Drupal Answers community, why don't they help by adding comments or answering people's questions, instead of changing them for no good reason?