The longevity of boost on NA cars

I like how it is explained on boosting a NA car from the 8thgencivic forum by highrev1.
"If I had to put a mileage on it, I'd say 5 psi won't affect longevity much. 8 psi may reduce it a bit, and 10 psi will be even more than 8. So, if you get 300k out of a N/A honda engine, then 5 psi might give you 280k. 8 psi might give you 240k. 10 psi might only give you 180k."