Your response is pretty lame. Note that 4 of those 'commands' were in Vietnam, which could have easily occurred in a single year, the typical tour in Nam. That leaves 5 'commands' in 8 years. One of those 'commands' was with CINCPACFLT, which in many cases are short-term (I served with CINPACFLT for 1.5 years, and the sailor I replaced served even less). Let's assume 1.5 years. That leaves 4 commands in 6.5 years, all ships, of which one was a diesel sub. That tour could have been less than a year, particularly if there was a medical problem that was aggravated by depth). Let's assume 1 year. That leaves 3 ships in 5.5 years. Very reasonable.
No, not really. Look, why are people tripping? So he was a narc. So what?