Not to mention post 34 where "5" was explained.
Fifth column by the way was brought up KingKongCobra at post number 35.
I am just going on the written evidence.
The 5th column references started at post 9. If it didn’t hold that meaning immediatly, it certainly assumed it in subsequent threads. It’s either a tacit accusation of being a traitor, or mindless repititon of the same argument. “Getting 5’ed” doesn’t seem to mean the person is agreeing with you.