I played 3D games back in the days of Quake and Duke Nukem 3D and have never had a "move mouse down and view goes up"

Joystick sure, but the last joystick I had was a 15 pin DIN

Here's the `invert mouse` setting from Quake2[1], though, I know for certain that Duke3D and Doom had the same option. I feel like every FPS I've ever played has had it as an option.

Now, to be judgemental, anyone who enables the invert option is an obvious psychopath. Although, to be fair, everyone thinks I'm a psychopath for using Mouse2 for Forward.

[1] http://www.quake2.com/kko/menu/options.jpg

Oh come on. I’m a pilot, or at least I spent a good deal of time in flight training when I was younger. I’d rather not mix systems, that’s all.

Yeah screwing with your muscle memory is a really bad thing to do for pilots because that will be there for you when you need it the most.

Doom didn't, since it didn't support looking up and down.

"Shearing" was added for up-down look in Heretic, for the non-Doom engine descendants Duke Nukem 3D and Rise of The Triad supported it as well. I don't remember if it could be bound to mouse movement in any of these games.

They were bound to keys for the DOS versions from memory. Forget when the mouse look was supported but the view was highly distorted so mostly useless until later ports enabled proper 3d rendering.

No need for a plane, works that way for my head in real life too :) tilt your head back and you look up

This game has no plane or joystick though.