Aggregated information about an application may be OK, but a web-browser is more like an OS than an application: it has a way to draw UI, a way to communicate o

Aggregated information about an application may be OK, but a web-browser is more like an OS than an application: it has a way to draw UI, a way to communicate over a network, a way to interact with the user's mouse and keyboard, and a way to run applications that are incompatible with other platforms. While I still don't see it as ethically flawless, aggregating information about a website is certainly much more acceptable than aggregating information about a web browser.