Da Bachtopus; Kolya; svidrigailov; DFranklin; musicbloke: no-one current, certainly. (Well, with the exception of DFranklin, who appears to be as immutable, transcendental and sempiternal as mathematics itself.)
Here, incidentally, is a textbook example of the erudite calibre of scholarly discourse one might readily find on TSR of old; note Da Bachtopus' contributions—particularly from the second page onwards—and musicbloke's thereafter. Alas, sic transit gloria mundi; TSR today, like Game of Thrones, is a mere shadow of its former self.