I have no idea. I dislike outright "choose your own adventure" type gimmicks authors sometimes do for plot twists, but I have seen points raised in comments that made an author cosider something in the worldbuilding or motivation that they hadn't before. So it can have more subtle effects.

I actually don't care much about the impact, for me it is more that the serial model gives an easy way to talk about something in a casual way, that doesn't demand from you to "properly" review a finished thing. I think it is similar to how weekly series generate more conversation than series Netflix releases all at once. It's not just the time factor.