You seem to be under the impression that I'm implementing naive RSVP with a slightly improved UI. I've made improvements that I haven't told you about, and I'm experimenting with different variations on the concept. I believe that people don't persist with RSVP because the software is bad - in addition to the inconvenience of getting started, they periodically force task loads into timeslices where they don't fit, which derails the reader badly. I wrote my own software because I believe I've found ways to reduce how often that happens, and to reduce the disruption when it does.

If you think you know something about RSVP that I don't, just say it. Don't play games.