I started a thread about this in the zbrush forums here:

http://www.zbrushcentral.com/showthread.php?161801-Wasn-t-there-a-poser-import-zscript-before-R2-I-don-t-seem-to-see-one-now.&p=897689#post897689

It sounds like it only changes objects with polys that have more than 4 sides, which should be a very small percent of poser used objects, based on a reply within hours of my question.

 

Way too many people take way too many things way too seriously.