Profitting from traffic from stolen goods is pretty unethical, for me it doesn't matter if you paid for it or not. Clearly the hacker did this either to damage twitter or to profit from it, and in either case you could have done the right thing. Claiming that others would have disclosed it (which is something TC did pretty loudly) is really funny, so you effectively have already admitted that it was unethical, but because others would have done it that made it 'right'. Anything for a scoop.
You could have gotten a good bit of mileage simply by reporting about the hack, instead you decided to do damage to others for your own profits.
It's funny how acceptable stuff like that has become, and how you seem to be claiming some kind of moral highground here for something that is simply sleazy.
Profitting from stolen goods, directly or indirectly is unethical, if you had any sense at all you'd have given twitter a warning that their files are out in the open and you'd have destroyed the data.
I hope one day you'll find the tables turned, we'll see how ethical you will think this is then.
And I'll be on your side in that one, just like I was solidly on twitters side in the other.
Giving people a platform to do damage and to profit from that is sickening.