Imaan Hisham wrote:
and also taken from "About NVRAM and PRAM":
"OS X does not store network settings in NVRAM / PRAM. If you are troubleshooting a network issue, resetting it will not help."
This is if you are troubleshooting a network issue. If your computer simply would not connect to networks, it may not be a setting that is screwed up, it may just need a reset to cause it to start using the wireless again, it doesn't hurt to try and at least some information was given to you to help. Nobody said it would fix anything, they simply stated TRY...