Their metrics may not account for knowledge of the 'feature'.
Yes, users will use a positive service more often. But if that service is positve at the expense of hiding things, then some will not be happy.
Yes, users will use a positive service more often. But if that service is positve at the expense of hiding things, then some will not be happy.
In other words, yes it can help you optimize the color or size of a Buy Now button. But it can't help you build a product.
What you mean is: it can only lead to a local maximum in the worst case scenario. Even blind guesses can occasionally lead to a global maximum, and A/B testing is better than a blind guess.