Old Salt wrote on May 27^th, 2008 at 2:58pm:

MREs are so loaded with salt, that I can't tolerate ANY of them. And 'salt' is my handle.

Since many of the MRE's have a shelf life, measured in YEARS, especially those Army surplus one's, you can add the "OLD" part of your moniker as well ;D
I'm sure the high salt content has a lot to do with the long shelf life :P