Talking with co-workers about a certain person who bothers me with their pointless divergences reminded me of this article:
"The first thing to understand is that hackers actually like hard problems and good, thought-provoking questions about them. If we didn't, we wouldn't be here. [...]
"What we are, unapologetically, is hostile to people who seem to be unwilling to think or do their own homework before asking questions. People like that are time sinks -- they take without giving back, they waste time we could have spent on another question more interesting and another person more worthy of an answer. We call people like this 'losers'."