For someone like me, I can put together amazing builds for events I might host or help with. But there is always one fork in the road, especially when activity is high.
The prop limit.
So, I propose having a plugin or some way of implementing per user/per group prop limits. These per user limits would only be active based on who's using these limits and their needs at the time. For example, a gamemaster per user/per group limit would raise the proplimit a few notches to loosen the tight constraints of population-based prop limit so that in the event that a minigame or something was not prepared and the prop limit was too high for the build that was built 20 players less than it currently is, the trigger could be activated with a sort of mode. The question is, how it would be implemented in a way that it could not be abused (not sure how you could abuse it other then using it to make mega-builds for non-event purposes, but that's all I can think of.)
I believe this is a good idea, and I wish for all the input I can get.