This comment looks like an attempt at implying some kind of deep knowledge, but you're demonstrating a terrible ability to convey information. "Global buffer pool mutex that's designed to look smart" does not fall apart if you have a few dozen queries running at the same time. Source: the place I work at has a multiple of several thousand of what you wrote, and surprisingly - nothing falls apart, and we've been using MySQL for decades. Like any software, it has its negatives and positives.

Our job is to be aware of shortcomings and work around it. This rule applies to any software, any language. I'm sorry that using MySQL has made you so mad, but deliberate spreading false knowledge simply because you're angry helps no one.

I think you need to update your knowledge about MySQL and not bang on about v5.1 and earlier.