You decided to frame the issue in terms of “return on investment,” and you decided to set “improvement of fan intensity” as gauged by the stupid site as the measure. You were rightly ridiculed and downvoted, so you pivoted and pretended you were just making ripperduck’s point all along. Which of course, you weren’t. You could easily have just started a thread questioning the spending if that was your intent. I’m not arguing that the project is or isn’t a net positive.