He deleted his post/ post was frodocooper'ed  , his account is shady no doubt, but the info he had put together are someway reasonable, overclocking your gears is risky, nevertheless ,it does bring more profit so in some cases it is worth it.

"Does overclocking shorten the life-span of any electronic equipment?" is an ever lasting debate, an overclocked gear may last longer than a gear running at stock setting or even under-clocked, there are no real accurate numbers one can use to determine the amount or possibility of damage caused by over-clocking , but it's safe to assume that overclocking must be done in a reasonable manner to minimize the risk the maximize the gains BTCBTCBTC.