That's a comprehensive listing.
Big fan of the no-grunting, no-singing rules.
I have another one to suggest:
"Try drying off in the shower area instead of sloshing your drippings along the way back to your locker. Other guys don't want to step in your puddles while they're changing."
My gym population is fairly considerate, but for the drippings thing.
Some guys get partly dressed, then carry their pants out to the hallway (still w/in the men's area) to put them on to avoid dragging the pant legs thru slosh.