I can see both sides of the argument for and against making Poser 11 free.  On the one hand you don't want to make people who purchased it mad about it now being free, On the other hand it would give a bunch of people another free program to use.  Since they probably won't remove the serial number activation then for the Free version all you get is the program and the small amount of content it contains.  Also, they could issue serial numbers that WILL NOT count towards a discount for Poser 12 or 13, those that did purchase Poser 11 get whatever the normal discount will be.  Since the program comes with La Femme it would be natural for people to have to come to Renderosity to get more content and increase sales.

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13