Should Average Pilot Experience Levels Of Each Airline Be Public?

[latetonite]

Experience is not understood by the public. The whole technical part of flying is not understood by the public. Just refer to a "nice landing".

A license issued by a contracting state should be looked upon as such. There should be no need to have a letter issued by that state that this license is genuine.
If pilots want to cheat, it is much easier to cheat in flying hours, than faking the complete license.

Last, but not least, flying hours say nothing, as mentioned before.
In times where everybody can buy a license, and airplanes are so reliable on automatics, one can fly half a life span without knowing what is going on.