Money. I don't think Blocktrail gives a shit to what Bitmain does with it now, I am sure they all made a nice profit.
Money for Blocktrail. But, how does it help BTC.com aka BitmainTech ? Why did Jihan spend money on it is question to me.
....the url, BTC.com that right there is most likely why he did it, to have the ability to transform bitmain from just a mining company to a Bitcoin mega goliath.