Earlier quoted context omitted.
No Ubuntu doesn't , and nor has it every done. It connects on-line and off-line searches, so it shows you the result in on-line locations. The underlying assumption was that users increasingly see on-line and off-line content as all part of the same world ("their content"). The commercial aspect was that it connected to places like Amazon. It made money for Canonical by using affiliate links if the user chose to make…
I'm sorry, but I think I trust Canonicals' privacy policy as a source more than you: "Unless you have opted out, we will also send your keystrokes as a search term to productsearch.ubuntu.com and selected third parties so that we may complement your search results with online search results from such third parties including: Facebook, Twitter, BBC and Amazon. Canonical and these selected third parties will collect yo…
Which was four years ago. It's off now, and has been since 16.04 (the most recent LTS release, which shipped last year).
I agree the Amazon integration in the Dash was a mistake, but it's a mistake that has been fixed. It's simply not true anymore that "Ubuntu unity sells your searches in the desktop environment by default," and continuing to tell people so is deeply misleading.