Comment by slg

You are going beyond my example by saying this information can be used to track you. This is the only information collected in my example. It is not associate with any other information so there is no value in trying to deanonymize it.

Perhaps it is better if I approach the question from a different angle. What is the downside of someone having this specific information about you? Can you think of a single negative repercussion from someone knowing how many tabs you have open? That is the fundamental point here.

The idea that all information related to a user should inherently be private just seems like a needless draconian standard and one that didn't exist in the pre-digital age. The privacy value of each piece of information can vary wildly. Some of it deserves protecting. Some of it doesn't.