This is another one of those endless debates.

In a old-fashioned wooden-spoked wagon wheel, it is rather obvious the axle stands on the bottom spokes. When you look at such a wheel, you don't "care" whether the spokes are under compression or not - it does not confuse.

Introduce tension in the spokes, and suddenly people throw up their hands and say, "ah, so now we are hanging, no longer standing!" The wheel doesn't care what the spoke pre-tension is, whether it is positive or negative. The basic function of the spokes remain the same. Forget about hanging or standing semantics - the bottom spokes are still doing the work. If you loaded and unloaded a stationary wheel thousands of times such that the bottom spokes each time lost almost all of their tension, those bottom spokes would eventually break, since they are doing all the work. The rest of the spokes would be just fine.