True michael, but engine life is reduced whenever the engines are used, so over time the impact of high levels of reverse is to reduce overall life and/or increase engine costs.
However, my personal opinion is that they are installed to improve landing safety - if you elect not to use them you'd better be able to defend your decision in the event of a subsequent runway excursion, whatever the cause.
The key phrase you use here is: "Someone told me" - was that someone quoting from your company Ops manual, and can they show you where? If so, fine; if not: continue to abide by your company-specific approved ops procedures and don't believe everything you hear.
(even on PPRuNe!)