These reckons you mention. Over the years I have come across people suggesting the same approach to a problem. It makes sense in theory and it should work. Yet it doesn't. And I cannot explain why it does not work. Queueing/throttling/steering/pub-sub, caching, and synchronization seem to be three areas that spawn unintended consequences like crazy. If some young'un suggests something you have learned will fail, let them try it if you have the time. And then ask them to explain why it did not work. It's fun watching people learn.