Multiplayer screenshots is understandable as it would interupt play intierly. Besides, mid battle with a large monster do you want someone jumping game on you to go post about what they just did while you're still fighting just to come back once the battle is over to collect the rewards you earned.. or worse.. 3 other people at random times interrupting play randomly when ever to go post pictures..
No, being able to post only in Solo play is the best idea and can become a great tool in showing others your own armor set up, where certain items are located, to help talk about monsters and stratagies before doing a hunt and so on..
I have a bad feeling about this
3ds graphics are so horrible
"It's dead jim."
.. now this is wrong