Stupider thing about SIN immigration; getting stamped (and fingerprinted, whatev) on arrival, but (as of late) not on departure. They make you scan your fingerprint and go through an e-channel instead. I hate to say it but, here's an extremely rare +1 for US departure formalities...from a USC standpoint.
Though, the current Singapore way still isn't as bad as those pointless chits Hong Kong and the RoK give now.