The Caius/Kellerman issue was born out of the fact, that somehow the change of nation to play for was unnoticed/not dealt with in 2014 (according to my information).
However as we, the 2015 Admin Team, wanted to keep on having the rule of having to stick to the first country/nation played for, we let them decide for which of those two nations they want to play for in the future.
Issues like these arise because we have changing administrations with different approaches and different opinions to certain situations and rules. This is also a reason the rules of the NC itself have changed so drastically over the course of the last tournaments.
@Fietta, your mostly wrong, please stop quoting Wikipedia on everything. If you want to have a discussion about anything, then please have it with me
on Steam. There is no need for this stuff in a thread as important as this one as it only clutters it with - for the topic - unnecessary information and makes admin life even harder.