Well I can't believe I get to say this, but I guess I'm the first english player to get frozen debris (even though it was with koreans)
here is the pic (sry no unifont) :
So little story, I managed to play on naver, and tried to join a game from there. I randomly go in a SD going run, and 2 of them recognized me from this forum. For fun they asked if I wanted to do one game with them (knowing they don't have right to get drop with english player in, they didn't want to lose more than one game time for fun).
So I joined for one SD run and BAM, frozen debris dropped. Would have been unlegit on any of them so I got for free. I'm pretty sure 2 or 3 were mad, but only one was speaking english, so I didn't get what others did say.
sorry^^ I hesitated to post it knowing some would have been mad or maybe even think it's not really legit (a kind of leeching them something I can't get with our group). But ended up posting it after some days afterall.