I think you are right, if Autodesk wanted Poser, they would have bought it some time ago. They could have outbid any of the previous buyers when it was for sale. Or maybe they just felt it wasn't a good investment. Obviously, for whatever reasons, they are not interested in it.

Incidentally, Autodesk is the 'buyer' of Studio Maya.
They are the sole developer of 3ds max for 18 years, since version 2 (that's the 2nd DOS release; not 'R2', which is actually the 6th 3ds Max release). They were just the publisher of the first release.
I used AutoCAD 1.4 (mid 1980s) and that was Autodesk product back then. I think AutoCAD has always been an AutoDesk product, since it's beginning.

Friends don't let friends use booleans.