They should only explore avenues of revenue that don't depend on spying on users. Offering a browser for free doesn't excuse such actions.
But for the sake of argument, why? "Big data" is huge an expected to grow exponentially over the next couple of years. This is just another form of big data.
Well, there's plenty of things expected to grow, that doesn't make them necessarily good. Pollution levels are expected to grow as well, that doesn't mean it's OK to pollute.
This is just another form of big data.
I disagree with that. Some forms of big data violate people's privacy, other forms don't; we can't judge them all equally.
It can't be judged equally but then who is responsible for judging it?