OP seems convinced but I'm not sure. He didn't mention Boolberry in the web hosting stuff and just looking at the web site I would guess that it did not come from the same coin mill. Furthermore it doesn't really fit the pattern of minor changes or no changes from the reference code that characterizes the rest of the crop.
Boolberry has the same mail host, but the rest doesn't match up. I can't decide if Sabelnikov is the mastermind behind all of this and, after a fallout with the idiots running the BCN shill accounts, wanted to separate himself from them. Or he could still be involved with/leading them and this is their last-ditch way of keeping a finger-in-the-pie - HoneyPenny was meant to be a one-trick-pony and just add "Wild Keccak", but after they lost control of Monero they realised they were fucked and needed to have something completely separate and "clean". Or he could truly have split off from the herd and be on his own. Can't decide, but the lack of transparency from him makes BBR not even worth touching until his motives can be figured out or he tells us.
Personally I found it interesting that crypto_zoidberg knew exactly what he wanted to change and how to do it within just a few weeks of the first public disclosure of the code. On the surface that seems unlikely for an independent developer.
So at this point, to me, Boolberry is a bit of an outlier. It has some apparent connections, but not as many as the others.
His early familiarity with the code gives his relationship with the CryptoNote developers away. Whether he did more than just write some/all of the code I don't know.