There are similar provisions. In my own experience and understanding, courts are asked from time to time to consider somebody as a vexatious litigant, so they are not able to file complaints, lawsuits, or other process with the court, except with the permission of the chief justice. They are simply seen to have been abusive to the court process. It's that same sort of mechanism.
I do not have--and I do not believe our committee considered--actual statistics on what the commissioner considered to be the number of inquiries or questions that were put into that category, but I expect it would be a reasonably small number.