I suspect a lot of us do that. It's such a minor thing to us, and I doubt most solo players realize it. I had one guy send me some gold and greens after leveling in the same area as every time I'd see him fighting a mob, I'd just hit it with 5x drive-by DoTs. He was thankful for me helping him get the quest done in like 1/10th the time it usually took him, and he was playing a utility class at the time.
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