Quote - My guess would be that you can already do something very similar in Poser.  See my attachment, this was done in Poser 6.  The first is two key frames, one at 100 and the other at 200.  The second side is the same first two key frames with two more at 101 and 102.  Adjusted frame 102 down slightly and end up with something very similar to what you showed in your prior post.

Yes, I'm aware you can do something like that, but it's a hack that becomes quickly cumbersome with a lot of keyframes.  I'd rather have the ability to have a lot more control the slope and curve of the in-between frames, especially if you WANT overshooting, such as if a character is pitching a ball, their arm continues a bit from the final arc before coming back to the position.

Quote - Actually I was amused by the notion that anyone thinks SM has any interest in people creating animation in poser

Well, Poser does have the capability of animating, and has multiple tools associated with it.  If they didn't want to deal with animation, they should remove those tools (but I have a feeling if they did that, a lot of customers would leave for other products...like me).

Animation tools should not be neglected, in my opinion, if they're going to have them at all.