I think you need to go back and read up on "going dark".

I have never seen anyone say it was about just disappearing, etc. I think you're missing the point. Maybe a vet will jump in here and give you an abbreviated version of what it really means.

M-60 H-51
M-14 years
BD 12/26/16
S 1/1/17

"First the pain, then the rising."
Glennon Doyle Melton