Development statistics for the 5.0 kernel

Time from report to fix, should be measured
aswell and responses between reporters and developers could be meaningful to have ( thou impossible to implement ).

Also there should be comparison between the kernel communities on all the *nix platforms.

How healthy are those,how do they compare to each other, are developers contributing between linux,bsd and solaris.

Is there rise or decline in one but not the others etc.

I dont think Jon and or other writers here have researched into that, gather the stats and written about it.