So here we are so far:

In appreciation - honourable mentions of some great  user-contributors to Poser's  continuing evolution into a terrific program.

Acadia -  for always sharing her  their wealth of Poser related links and her helpfulness
AdoranaDE - dynamic hair.
Ajax - (EasyPose)
andi3d -  for all his great bones
Anton - who has not only been an excellent content provider over the years but has designed and finally given away for free his brilliant Apollo figure and all contents.  His support has been exceptional too.
As Shanim/Siliphiel -
Bagginsbill - for sharing his Matmatic and taking shaders    to new levels
lesbentley- a great many  Poser tech contributions and ever helpful
B.L. Render (Bloodsong).  "Secrets of figure creation for Poser"  is an indispensable asset for those who wish to create content for Poser.
Capsces - for adding so much more to all the poser figures with her great morph sets!
DeeCey  - for her "Practical Poser" books.
Chris Derochie - started The Forge/PoseAmation back in the late 90s and has been instrumental in a lot of the early Poser animation and is still actively doing BVH work.
Dimension3D
Dodger
Dr. Geep - for his unique classroom style who has  newbies grinning  while climbing that painful learning curve
colin g
face_off - Not just because his skin shaders are the best, but because he has been so helpful in the forums.
a.hernandez
DPHoadley  - for remapping Posette to take V3 textures.
hokusai
kirwyn.- His/her dynamic hair solutions are innovative and a great asset to animators.
Kozaburo - transmapped hair freebies which are still widely used and some of  the best hairs around.
 jack k
 kupa
Tim Laubauch
 legume
LittleDragon
John Malis - for his Armor textures
Mapps - so generous with his great freebies
Maveris
maxxxmodels - great helpfulness
Nerd
nitrane
Ockham - for great python scripts automating a great many Poser functions- all for free
opera guy - enlightening discussions
PhilC - tutorials and great add-ons like Wardrobe Wizard etc
Pitklad for NEAena, Neja, and Domus.
pjz99 - great assistance
nruddock - for  invaluable Poser tech contributions.
tromnek - (Poser RPC scripts)
Sams3D - generosity with superb freebies and tutes
Steve Shanks
Schlabber...he is the posing genius and has helped pretty much everyone in their posing endeavors.
sharkey
Sixus1-  for getting 1 complete model out a week for 3 years for the CP freebie while doing other contract work and for having a hand in a lot of the content for Poser 7.
slinger
snowsultan - for his great template maps of the figures!!
Stahlratte for GIRL 3, Wiktorija, and Valerie
stewer - one of the most informative and enlightening helpers
Stonemason - superb product innovation
svdl
Sydd
don tatro
Traveler
Trekiegrrl - freebies galore
tromnek (Poser RPC scripts)
VK - I wouldn't be surprised if the Poser 7 dependent parameters are an evolution of his work with complex master/slave dial relationships.
larry w
willow
Wyrmmaster
yamamoto - Batlabs
yamato
Yarp - for free 3PDO which makes Poser file navigation so much easier.

And by special request the cats that own mrsparky :)

It would be great if you all could add the contributions these people should be remembered for in a short sentence or 2.  And yes always room to add more.