> Why not take a credit system like in curt of justice ("Innocent Until Proven
> Guilty").
>
> So why not granting the credit immediately after uploading a result. And - if
> it could not be approved - subtract it from the user.
>
Your credit would be constantlt bouncing up & down. Due to differences in processors, the granted credit for a given work unit can vary. Once a quorum is reached for a work unit the validator assigns everyone who crunched that work unit the same credit it calculated as kind of "the middle ground". In other words once you submitted a completed work unit you would be assigned a certain number of points. Then once the quorum is complete you would then be adjusted to a new number of points.

Alternative Credit System
)
FritTheCat,
I think this is a good idea. Unfortunately the current BOINC infrastructure is just not set up that way. So I can't just make a few minor modifications to the code to do what you suggest. Oh well.
Cheers,
Bruce