How many users block Google analytics? (2017)
One of the corollaries to this is that if you are basing your decisions on analytics, you are probably under-representing people who block them, who often tend to be a non-representative subset of your users. I have seen multiple projects do things like stop supporting features that their analytics “showed nobody was using” but failed to realize that a significant portion of their (often technical and very vocal) userbase <i>did</i> in fact use the feature.<p>Oh, and by the way, responding to these kinds of issues with “if you wanted your voice to be heard, you should have turned on analytics” is inexcusable.