What does everybody else here do when you want to use a favorite hair figure on an unsupported character figure? So far all I can do is load the hair without conforming it, and parent it to the head after moving and scaling it. It's crude and I wish I could do something else  with the hair figure so it will bend properly. I really don't want to have to learn how to rig up hair (or anything else for that matter.)

I re-rig it. You may not "want" to have to do that, but unless you do it yourself or buy a package that will do it for you, that's really the only way to get it to conform correctly. It's easy if the geometry is all part of one group. (ie: Neck is the most common.) It's a little more tricky if there are several groups. (I generally export the geometry, reposition/scale it in a 3D app, re-rig it using something quick, like "QuickConform", load it back up and then tweak it, adding custom morphs if necessary.

A quick and dirty method, depending upon your version of Poser, is to take it into the Setup room and apply another figures rig to it. Take it back out and tweak it using the Joint Editor. (Delete all the unnecessary bones, if you wish.) A slightly better way is to take it into the Setup room and apply a rig from hair that was made for the model you want to use the new hair on.