Your comments

Great work on this asset!
I thinks glow is a common neighbor in today games. I use Glow11 it widely in most of my shaders.
Thinking about manually fixing the above Tags after every compilation will make our workflow sour.
I believe this should not be much of a problem to hook custom tags into the source code post compilation. some regexes will do the job. You can also think about letting us to link a script that will run post compilation where we can parse the shader source and change things.