Yup, can agree that races in A/A+ are usually pretty clean (of course you have the Momoz here and there, but someone always spoils it). But right now it only punishes the wrong people, the victims.
It depends on the time of day. In the evening A/A+ races aren't any cleaner. Yesterday evening they were much dirtier than DR.B DR.A races in the morning. The last race I did at 9 pm ended with nearly half the room red, 30% quit and two dropped to SR.B. It was a very high level room, 20% A+, rest A. I still gained 252 DR for finishing 10th (I'm almost at 36K) while making up most positions from others knocking each other off the track. It started going bad at 7:30 pm with lots of cursing at the end of the races.
DR.A is dirty in a different way, forcing moves that can't work, leaving a nose in to mess up the car in front, touching your bumper in the corner to push you a little wide to pass, leaving you no room when going two wide. Calculated dirty moves to create openings. And if an A+ bumps someone off the road they'll just say, you were too slow or you still had half a wheel on the track, I left you room...
Now the penalties are all screwed up again, cleaner racing can be found at lower SR...
I guess I'll just keep repeating myself until PD finally sees the light.
Penalties don't work, they only invite retaliation.
Instead SR deductions for any contact, touching walls, going outside track limits, spinning out, crossing pit exit line, needing to be ghosted.
Bring the ghosting of SR.E and DR.D to all SR and DR. The game knows how to ghost dive bombs and side swipes, add a heavy SR Down to needing to be ghosted instead of giving SR.S players the joy of punting.
Standardize SR gains, max SR gain should be based on your current SR, max 20 points at SR 1, max 1 point at SR 99. No budget to drive dirty.