Not really, no. We’ve had different penalty systems over the years, which included periods where old violations would no longer be considered. Once we moved to the silence system, we no longer were using decaying penalties, so any penalty from that point on would be part of your account’s history. I believe the silence system went in around Legion, so the history would go from that point.
Note, this really only applies to social and naming violations. Exploitation or cheating isn’t a factor, they are on their own path, usually far more severe.