Why? My most enjoyable project doesn't have any tracking at all, I don't know if it has just 1 (me) user, 1,000 or a million. Every other week or so I get some confirmation that people actually use it and it always is a pleasant surprise, so much more worthwhile than just to see a number go up.

Maybe there is a businessmodel to be made with a platform that shows engagement metrics but they're not the real thing, just a bunch of counters that are incremented regardless of actual use. That way you get to feel good...