In Washington, the High Court, which has been refusing cases right and left, took a rare inside hit today for its incredible shrinking docket. The court rebuked an Oakland, Calif. man for filing 23 "frivolous" high court appeals since 1987, but eldest Justice John Paul Stevens dissented: "Given the current state of our docket, there is a peculiar irony in the court's reliance . . . on the supposed need to conserve its scare resources so that it may achieve its goal of fairly dispensing justice." BTW: The Supreme Court average of about 150 cases a year in the 1980s dropped to 84 last year.