Maybe a little bit off-topic...
What's the deal with KRB and BBR or the rest of cryptonight coins?
Any of them with good community, deserving to be bought?
No, if you want another
good cryptonight coin then choose the best, maintained by the best altcoin development team. Monero. I am not saying that because I am an Aeon holder, I am saying that because it is true. But I know many will disagree with me because of different reasons.
In any case, most in the cryptospace have a lot to learn if you see cryptocoins like IOTA or EOS in the top 10 on Coinmarketcap.