Explain to me the term "gimping". I've only ever seen it used to describe roleplaying which obviously doesn't fit in this context.
It means that a skill is capped (either intentionally, or as an outcome of the system) and eventually becomes less and less useful as you level up.
In Skyrim you eventually reach a point where your Destruction magic cannot get any more powerful (happened to me around level 35), however your enemies continue to scale up.
Now I'm at level 48. So a battle with an Ancient Dragon takes forever, because he kills my summoned Dremora Lords in one shot, and shrugs of my Destruction spells like they're nothing.