Using QNE in cruise would be pretty dopey......
Yep I'm cruising at 8000 feet, but hang on, the field elevation was 7000 feet so I'm really cruising at 15000 feet, hmmmmmmm. I can imagine the separation and radio calls in class g
You're quite obviously confusing QNE and QFE. You might wish to review before calling others dopey.
QNE is standard atmospheric pressure, 1013, or 29.92" hg.
QFE is the altimeter setting used to get an altitude above the field elevation.