I’d actually argue that this would have detrimental effects. What’s stopping a company from visiting your site, seeing what’s popular, and stealing it all for themselves?
What do you mean by stealing? Other companies could offer the same products you offer already. If they know what people want they will spend resources trying to optimise things based on data, instead of guessing. Some other company may find a better/more efficient way to offer the popular products, which is better for everyone.
It's a way to level the playing field. The idea is that, if everyone has access to all the data, then there's more opportunity to make all business more efficient, whereas if some businesses hold information about the market and costumers for themselves, then they get to be sloppier in their implementation because they are already so far in the game.
