Many reviewers seem not to understand the simple purpose of this add-on.... It factually helps making the Capcha experience more fluid by identifying you automatically as a non-robot (in *compatible sites*).
The annoying spyware and malware network that has become the corporate Internet becomes more sufferable. But that doesn't imply it will magically clean up mean sites that aren't even worth surfing.
Privacy-Pass is the Sham Wow of privacy addons!