Wait, this is actually a thing? That's dumb af.. >_< Rank does not equal player skill level. I've fought several U ranks I've beaten just like that, and F ranks that has kicked my ass. Yes, your ranking should somewhat reflect on your skill level, but 9 times out of 10, it does not.
That is so retarded, I didn't want to up my rank. I figured oh okay I'm an LR right now, maybe if i get to E I'll be able to upload. That was last night, got to E in a few matches and still nope.