Being mad about something like this is just choosing the wrong hill to die on, honestly. Studies (https://support.mozilla.org/en-US/kb/shield) are clearly just a/b testing of features for the browser. Doing this opt-in creates selection bias which corrupts the whole idea of running a/b tests.
So instead of saying "you should run your a/b tests opt-in only", what you really mean is "in order to fight for privacy, you should never run a/b tests", which, again, totally wrong hill to die on. Why is it so important they not be allowed to try different features to figure out which ones work and which ones don't?
Mozilla has made so many missteps they circled a small planet with them. This isn't one of them.
So instead of saying "you should run your a/b tests opt-in only", what you really mean is "in order to fight for privacy, you should never run a/b tests", which, again, totally wrong hill to die on. Why is it so important they not be allowed to try different features to figure out which ones work and which ones don't?
Mozilla has made so many missteps they circled a small planet with them. This isn't one of them.