But of course - shaders alone don't change anything. You need mods that use these shaders.
We use various mods in our leagues and we sometimes introduce our shaders to them.
I'm currently working on Shader Pack v0.7 (need to release it this week). My plan is to release modding tools with version v0.8 and that should allow modders to use our shaders.
If I would release Shader Pack to modders right now, I would have to provide technical support and that would probably slow down develompent and I also have some other tasks at our portal.