Originally posted by: GrumpyMan
Constant formatting = you don't know how to maintain a computer and should find another hobby.
Exactly! It's really sad, that due to the poor design quality of Microsoft OSes in general, that this idea of somehow needing to re-format often has become this sort of "urban legend". There is no need for a properly maintained OS to need re-formatting/re-installation on a regular basis. The only times that this should be needed, is due to disaster-recovery, or possibly in the case of a major platform (OS) upgrade, because sometimes you never really know what glitches could pop up after an in-place upgrade.
The sad part is, and this is where the poor design of MS OSes comes into play, is because of how complex it is, because of many years' worth of legacy compatibility and feature-itis build-up, and how "hand-off" things like software installation and removal are. So if some unwanted software gets installed (due to security flaws), it becomes nearly impossible for an ordinary user to remove it, because it doesn't come with a single pretty icon to double-click to remove it. (And thus the growing proliferation of 3rd-party tools to remove things like spyware, old device-drivers, and what-have-you.) Sure, MS creates entire software industries because of the design flaws and weaknesses in their software, but it doesn't have to be that way, and IMHO, it would save a lot of time and expense on each individual user's part, if MS just fixed the issues up-front in the first place, even if it would mean effective genocide for those 3rd-party tools. (The laws of supply and demand have no regrets.)
My point is thus, "it doesn't have to be this way". I just wish that MS might actually think of the users for once, instead of their lock-in and profit margins. I give MS another 5 years, 10 tops, to be on top. If you follow these sorts of things, their curve has reached its apex, and will soon be in decline.
PS. To answer the OP's question, formatting or zero-wiping an IDE HD, doesn't cause it any more wear-and-tear than ordinary usage. In fact, due to magnetic fade/drift and minor microscopic mechanical wear, it can often help maintain the readability of your data if you "refresh" it once in a while. However, that is different than reformatting, and moving the data around due to say, a defragmentation process, is just as effective at re-writing the user data sectors.