Re: Endurance Points
Sending an occasional gift of points to someone isn't likely to run out of control, since it takes a lot of time to build them up. But I recently received two extraordinarily detailed reviews where the reviewers put in hours of effort. I would gladly read extra works to build up enough points to reward them from time to time, just as I read to get enough points to publish. If I know someone is new and trying their best to give a good review or trying to stay with me, I'd probably give them an occasional gift as well.
There are people who read more than they write (me included), so we've built up quite a horde. Once those are spent, however, the system equalizes for everyone and you have to read even more to get the points to give away. If someone is a prolific writer and puts up stories at five times my pace, and they're getting lousy reviews or people don't stick with them, then they need to slow down and read more.
There are other reviewers who give barely any feedback and they're getting the same points as someone who goes out of their way to give better reviews. The current system doesn't reward the quality of reviews. It's a communist economy, where everyone gets an equal share no matter how much or little effort they make. Let the cream rise to the top.
As for giving incremental credit for later chapters, the points can come from the system, just as the system currently gives extra points for reviewing new members.