As for map changes, I dunno, I figured changing to fresh maps produces the best results. Especially things like the Tekkit map. Say it was explored 5k in all directions, you'd have to walk 5k just in hopes of a jungle biome spawning. It's best to just get a new map in those cases.
I disagree. i have not started any projects simply because i know that i will never be able to finish them, we're changing maps too often. Before it was understandable since it was because map generation was broken by mojang, but they have made it so that the maps can be compatible with minimal chunk errors on the borders.
if thats the way the server continues to be, thats fine. its fun to ocassionally hang out, but creatively i am stifled and pretty much exclusively play on SP to work on building stuff that i can put effort into knowing it won't be wasted.