Reviving a long-dead thread for a relevant update, in a top-level post because you deleted all of your replies in the thread where it was relevant.
Mozilla did reply to my email asking for clarification on their Fakespot privacy policy, and whether they collect or sell user data, as we were discussing - though that reply took them four weeks. Their response in full:
""" Hello,
Thank you for contacting Mozilla and for your question. At this time, Fakespot does not sell or share any user data pursuant to any applicable privacy laws. The only data we share outside of Mozilla are generalized aggregated metrics with service providers who make Faksepot run to help us with logging and debugging issues to provide an uninterrupted experience for our customers, and we do not share this data for monetary gain. We are in the process of updating our privacy policy for additional clarity on all the points referenced in your email.
We trust this answers your questions and thank you again for reaching out.
Kind regards, Mozilla """