ImperfectInfinity novel quality drops readership drops. Thus quality is still important regardless.
As for saying it's predatory practice. You read chapters for free. It's just like any f2p game. Game is free to play but ifbyou want the ultra uber weapon you jave to pay for it. It's called business and the model isn't anything new or somethings that's going away.
Also subscription model can only work if there are enough subscribers to make up the volume. I mean you see all the hate over advance chapters being added here. Just imagine if they made it fully behind a subcruption. The outrage would be 100x times worse because all the free readers will be pissed as hell more than now.
Century want to do a subcruption model they have to ease the readers into it. And this premium model seems in my view a step in doing so. I won't be 2 surprised if in 6months to a year they add in addition to premium a premium+ subcruption kind of thing. But they have to wait for the heat of premium to die down and let people get use to it before they shake things up even more.