HDD spoiled by constant formatting?

Question

I heard that constantly formatting your hard disk will shorten your hard disk life, is that true? Why?

Answer 1

well, in the first place so does sticking magnets to it, repeatedly throwing it against a brick wall and using it as a martini shaker. In other words, regardless of whether it would hurt it or not, why would someone constantly format a hard disk in the first place?

But to seriously answer your question, and assuming you meant a normal format (not a "quick" format that just wipes the partition table) The only reason I could see why it would shorten its life is because you're basically writing over the entire disk each time you format.