I just had an idea! And since I was already browsing the Sanitarium, I thought I might as well share it with you.
There I was, reading skill descriptions, and it hit me. All of them scale linearly. Every last one. And that's good, on the whole, because it really simplifies the whole attribute system.
But what if some of the skills scaled quadratically? Oh, the possibilities! You could have skills that grew increasingly powerful each time you upgraded them. You could have skills that would plateau for the first few levels of the attribute line. By no means would I want all skills like this. That would be akward at best and imbecilic at worst. But some new ones... It would add a new dimension to many skills and builds. Weighing whether to add a Superior rune versus a Major or Minor would be more of a consideration. And there's more, I'm sure, that I haven't thought of.
So, is it a game-changing revolution or piss-poor nonsensity? Your thoughts, comments, and observations, if you please...
C

, resort to Wikipedia. It's all in there too
.