The only time I asked a question on stack overflow I took a very long time crafting it, and was immediately closed as a "duplicate" of something that it clearly wasn't a duplicate of. Tried explaining how it wasn't a duplicate and got closed again. Never bothered trying to ask a question there again. The amount of effort I had put into being a good asker was completely wasted on someone who seemingly didn't even read my query before eagerly shutting it down.