Cybernetics is actually about feedback control systems. The original meaning has been distorted because the general public doesn't have the background to distinguish different kinds of magic. The Sperry autopilot was a cybernetic system, as were electro-mechanical gun computers.
Sure, but that hasn't been the common use for "cyber-" for the past ~46 years, which is about ~2x longer than the time between when the term "cybernetics" was coined and the "cyber" was taken from it in 1980.
When I was like 12, I remember my fellow horny youths (or it could have been anyone, I guess!) in AOL chatrooms constantly asking each other "wanna ciber?"
That would be "cyber" as a verb, not "cyber" as a noun. Would anyone have understood what you meant back then if you'd said "I was in a cyber just now" instead of "I was cybering just now"?