I think this is deliberate crowd-sourcing the process. They incentives were put there by design to optimize for single-sourcing questions and answers for the be

I think this is deliberate crowd-sourcing the process. They incentives were put there by design to optimize for single-sourcing questions and answers for the benefit of future askers. They have to balance helping the initial questioner versus people 2 through 2 million who may ask the same question in Google search, and want the 1 best answer. They are dramatically favoring the second group. Whether they've gone too far is open for question, but I believe it's deliberate.