Yeah, that's my whole thing. I absolutely support releasing NCUC for everyone, I just don't support removing trading (as a pet, not a NC item) from everyone who has worked to get UCs over the last decade. It's punishing the people who ground their way to making a great BD pet, traded that for a T6, finally made it BN T10 and was now working to get into names or higher level BD, or whatever dream pet they wanted. Now they're just back to having a BN converted plus an item they could trade for NC but not necessarily for the pet they wanted.
They could so easily have had NCUC tradable as a NC item so people would get all the benefits will do now, while still keeping the 'original' UCs tradeable as pets. They'd probably still lose value but people who wanted originals for nostalgic reasons or were working on trade chains wouldn't lose out so completely.
It's also taking something people enjoy as an activity away on a site that is absolutely begging to have more activities. As I say, it just sours what would otherwise have been a near universally hype thing imo, and for no real reason when 'why not both' would be possible.
(AND I'm going to be sad that more of the weird/cute BN pets are going to be leaving stage right - a lot of people loved them for the art - nice that they can get the art on WN pets now but sad to lose that nostalgic factor - who will love Brittney6969neo now)