That was the point where I stopped using it.

They included a global search function which in a default installation sent your search terms to Amazon and returned search results from them.
It also sent them to a web search (with real time results while you typed, including image previews). So it was possible to get shown NSFW images accidentally inside your OS, without opening a browser.
It was just really bad design, and a heavy-handed attempt of monetizing their OS.

Of course that could all be removed with a bash one-liner, but it showed where Canonical was headed,