Recently someone asked a question here on HN. I answered, and while it didn't take long, it did take a moment or two of my time. Freely given.
Then the question was deleted. No thanks, no acknowledgement, no reply. Just summarily deleted.
In the grander scheme of things it's small fry, but it irritated me. They probably don't care. After all, who am I to them? But still, it rankled a bit.
People - don't be a jerk. If you ask a question and someone answers, say thank you. They've taken the time, does it cost you too much to be polite?
Or am I just completely out of touch with reality?