Triple parentheses has been used to denote Jewish journalists and politicians.
Yes, but only by fuckwits.
I find your obsession with Judaism and it's adherents as baffling as it is distasteful. I cannot imagine a situation in which it would be in any way helpful to know whether or not a given person was a Jew; it provides exactly no information that I can use for anything. You might as well put multiple brackets around a person's name to indicate that he has visited Arizona, or once ate a tuna sandwich, or is a Sagittarius. Why would I give a crap? Why would anyone give a crap?
If it's four pairs of parens, it's a while male marked for the testicular modification program.