Poser was never big enough to have a separate quality control department. The programmers do everything (at some time it was even rumored they were packing the boxes [very slowly] and taking them by wheelbarrow all the way to the customers).
There have been "easter eggs" in Poser, most we call bugs, some are features and very rarely some users have found things that were left in but never made it to full feature items (although some things have been abused and do work quite well). If you dig deep enough you can find a few hints about settings that don't actually have any use or settings that behave different from how you expect they should work.

In short: Poser is actually one big easter egg, somehow it actually works quite well, even it is ancient, faulty and unreliable code. A full rewrite with the latest technology could be a master piece of a useful application (I have to stop dreaming and return to the real world).