As a blogger, I know that a well-documented shortfall of Second Life and its many viewers is the that one user cannot pose other users in the same way that one can pose their own avatar in viewers like Black Dragon and Alchemy. This poses (no pun intended) an issue for people looking to do photography involving more than one subject. Yes, there are pose stands that allow you to do generic posing of users that sit on the pose stand, but the features are limited as compared to the poser in Alchemy and BD. (i.e. The bones available for posing are fewer in number, and are limited only to rotation-- whereas Alchemy and BD's self-poser also include position and scale).
My suggestion is this: a poser that is Experience-based and REQUIRES the consent of the avatar who is to be posed. Furthermore, consent is to be re-acquired with every attempt to pose the other user. This way, nobody can break privacy ToS or personal boundaries. In the spirit of total transparency, safety and privacy, the user being posed should/could also be able to see every change made to their avatar's pose, and can cancel the posing process at any time.
I would really love a consent-based feature like this to be implemented, because the ability to cohesively and smoothly pose those who I am doing photo collabs with is essential to the ease with which I create my art as a blogger and a virtual photographer.
I hope this suggestion will be considered!