Telemetry is one of the biggest controversial topics in the Linux community. Many people believe that telemetry is entirely meaningless, because developers can “just” ask their users. Some people also argue that users can opt into telemetry if they want to participate, but most of these users are in consensus that opt-out telemetry shouldn’t be there in the first place. However, I don’t believe that asking users or explicitly opting into telemetry helps to a degree where developers and designers can form educated conclusions, as both methods share many issues regarding gathering data accurately. In this article, we’re going to explore the issues around asking users and opting into telemetry, and then I will explain why opt-out telemetry is a better approach to gather accurate data and forming educated conclusions.