Deletion of Kraken Bitcoin Exchange

Comment: Notability established by http://moneyandtech.com/bitcoin-exchange-kraken-launches-margin-trading/, http://www.hongkiat.com/blog/exchanges-buy-sell-bitcoins/, http://www.investopedia.com/articles/investing/111914/look-most-popular-bitcoin-exchanges.asp.  doesn't say anything about excluding trade publications
Stance: keep
Cited policy: Wikipedia:Notability (WP:NCORP)