I don't use much EA-40, but I was needing some thick epoxy so I grabbed it. This stuff is 4yrs old!
It's also still good! I opened the hardener and after the initial stank evaporated in a minute, it had the normal Corn Nuts smell.
I'm using it in a non stress application, so even if it is compromised, which I doubt it is, it will not matter.
Don't throw the stuff away because its supposed to have gone "bad"
Like Mr.T said; "Rules are for Fools"