Don't you get the age effect echoes when you die with it on?

Otherwise you could fountain of youth a char at the price of 1/3 con with -age gear. Just eat a death to gain a bunch of years. (if you know where to get -age gear, which is admittedly rare)

You could stack a bunch of -age gear on an arial, eat one death, and live forever. Arials would end up being the most hours as they could so easily rejuvenate, being that a year to them is far more hours than it is to an elf.

Also, people age die the second they die wearing -age gear, unless they can get it back on before the next tick which is unlikely, so the -age effect does not seem permanent.