I get your idea behind it. But still I think we should keep our hard work original. We spent months, maybe years already working on the tracks and stuff so I just can't imagine that when we release the game suddenly half-assed tracks pop up from everywhere.
Also you have to remember, creating the track itself is just half the truth. To fully implement it into the game, it needs logo, background story, you have to place speed & weapon pads, you have to place it in a way where they will be automatically removed in speed lap, zone mode etc. And speaking of zone mode: get's even more complicated if we create visual effects for our tracks. I am just afraid the tracks created by people outside of this project [who are not aware of our "basics"] aren't able to create tracks which fully go into SSGX or have to origins of our idea.
And like Xpand said, we'd spend hours of hard work to create a editor & half of the stuff people would create might be crap anyway xD
@Xpand: Thanks man, gonna check it out right away!
EDIT: When importing to Vue, it says the file "CERN_BAS.PSD" & "PADS.PSD" is missing... Track section itself could be imported and is perfect!