Yes, that could be a model to use on the MOD as well.
On debian any new application enter at the unstable stage, and so do any update for it. After some time (on debian that be 5 days) it will automatically move forward to testing, when no bug/error been reported or detected. Then, after a year or so, it will become stable, again, when no error/bug appear, or all errors been solved.
Programs which ain’t full-fill the needs goes to experimental, were they stay as long as they ain’t full-fill the needs, on MOD that could be to high CPU usage, crash, no UI, etc.
I think, making plugs depend on a voting system from users is not a good solution, as most users wont ever vote. But, if a bug appear, more users take the stab and report it.
Also I wonder, how that system will compare to commercial plugins, when they enter the MOD.