1. It's nice to sometimes try to answer other members' threads with helpful information.
2. Chat's the easiest way to get something answered? I guess if you catch Bill when he's done his round of answering every thread ever with obscure and arcane knowledge, then yeah, I guess so. Half the time I wind up in the middle of conversations about motorcycles and boobs, which are way better than talking about broken car parts, so nobody notices the question.