In my experience translators don't do an effective job of communicating what premium is, what it means and when it's coming. Most people also aren't on the forums. As such all translators should receive a paint by numbers announcement and have to run it for a set number of releases/days before a shift to the premium system. I think this will alleviate some of the push back that has come with premium.
Basically:
"(X novel) will be shifting to our premium system on (date time and timezone). We understand that this isn't popular but it's what we need to do to survive. With this change you can expect an initial mass release of (X) premium chapters and (X) free chapters. Going forward their will be (X) premium chapters released every [day/week/month] and (X) premium chapters converted to free each [day/week/month]."
at this point I'd like to make another request, since chapters converting from premium to free don't have notifications and that they are always going to be chapters that exist before hand make releases automatic at a standardized time. An example " the 7 free chapters converted per week will be release daily at 12am est" that is unless a notification system is implemented for chapters going free.