Jeff Vogel on changes in your products

There seems to be no essential difference between users of Jeff Vogel's games and users who are petroleum products traders and schedulers. They complain and insult you for trying your best to make improvements. Then they praise you for putting in something mindless like a "Refresh" button.

I think it's because the users have minimal control in the development process.

He describes the opposite of "trying to be everything for everyone", namely finding your niche (where nobody can yank you out) by constant iteration of product. The point to keep in mind: you will loose customers during the process and you will win new ones. The important thing is to make sure the new customers are a better fit.