Debug is banned as a general rule (alteration of the game). So is direct manipulation of tails (in S+T runs), even if by a single person, even if it's before a run, as I understand it to be. (I may have used a state that set something like this up, but I've never done it myself, should a rules revision occur I'll gladly take down any offending stats.)
The fact that trick points don't reset is a technicality based on the fact that the points aren't awarded, and the way our scores work still gives them to the current run, because they aren't awarded until the run is complete. a loophole, if you will, that's been generally allowed because it makes SAing Rush a lot easier of the DS, and if I remember correctly, it was by popular decision of those involved at the time that such a judgement was made. In theory, the max scores with and without it are the same, and take just as much skill either way, without having as much bs spamming to do during the entire run. I'm not specifically sure, though, as I wasn't involved, only overheard it.