Whats the incentive to share it? Disclosure is an alpha-erasing move.

Not always in the startup world. http://www.paulgraham.com/newideas.html

Oh it exists. Lines of code, number of commits, number of documents and other such BS uncorrelated with actual work.

Imagine how poor management must be to think more lines of code == more revenue.

They are correlated until you admit to using them in the performance process. Then they’re far too easy to game and become useless. What we haven’t found is an adversary-resistant measure of productivity.

They are absolutely not correlated. Engineers often spend some quarters investigating and fixing scaling issues. This work does not need to a high number of locs.

If your work is merely adding some feature factory or bug fixes, maybe there is a correlation.