I was recently informed that VRC keeps track of the humanoid skeleton's pose values via Floats. Learning this, the question came up as to why we haven't been granted access to the Floats for the fingers (and all of the other pose floats) so that we could have access to custom hand poses to use as gestures via Index and greater possibilities for VR users as a whole.

I can already think of the many insane possibilities that would come into play if this were to become a thing. Raising your arm to activate animations because the float values exceed certain ranges on specific humanoid bones. Making a specific pose to make an animation play when the floats entered into certain ranges. And finally, tracking your finger's floats to then animate your little toes to seamlessly follow your Index controller's finger wiggles.

If there's a reason for why we shouldn't have access to this or if I'm greatly misunderstanding your system, let me know, as all I have to go by is reliable here say.