1. Forum avatars,
2. For fun (like a foto booth, maybe used also by roleplayers), and
3. When speaking in MWO, the image comes up in the hud with the players name.
It would add some new social aspect to the game and allows more personalization features to MWO. Especially with moving towards some 1:1 game modes this would increase the social part of it.
And of course it allows a lot of options to make a few bucks on PGI side, e.g. sales of fraction uniforms or backgrounds.
Edited by Vortex013, 20 November 2016 - 12:53 PM.