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We had been invaded by bots and trolls, so I set the channel to allow registered nicknames only. I'm guessing you hadn't registered your nick. I've removed the +R setting for now in the hopes that the bots have been aimed somewhere else.
There are only OU and Uber analysis so far for the fifth gen. You would need to find if Blastoise already has a fifth gen analysis, and if so recommend it there, otherwise you can try to reserve it in the BW OU subforum of C&C.