You appear to know some people and organizations who have solved the problem. What I am saying is that, other than GitHub, you apparently don't know the multitude of other organizations that haven't solved the problem yet, and you appear to falsely believe that they do not exist. (And yet you also claim to know people from Percona and Pythian; what do they tell you they do for a living?)

As I said, a lot of the problems organizations have are not publicly disclosed, and the people who know aren't authorized to talk about it. So I'm sorry, you're not going to get the examples you seek here. Companies like to keep their weaknesses close to their chest.

> i am NOT saying that github can hand wave this away with money and hiring. you misunderstand. what i am saying is company of their business size and scale should have already handled this long ago,

If not through money and hiring, how should they have accomplished it? You propose a goal but no actionable plan. That's worth diddly squat, both in engineering and in business.