I feel similarly toward Patrick Rothfuss, since I absolutely love his few books and I've re-read them a few times, but it seems like there's no end to the series he created in sight still. Early into his creation he promised not to be like other fantasy authors who let their series stretch into decades, often unfinished, but after some time it became pretty evident that he had fallen into the same hole they had.
So on one hand I appreciate that creative writing is tough, and meeting the rising expectations of your fans is very difficult. But on the other hand we feel a little teased with no meaningful climax, and often you hear the creator assure you that things will be coming to a close soon, but left with nothing. That's maybe the only thing I might have to be a little angry about, but the stakes are low enough that I can't really get worked up about it without feeling pretty silly.
So on one hand I appreciate that creative writing is tough, and meeting the rising expectations of your fans is very difficult. But on the other hand we feel a little teased with no meaningful climax, and often you hear the creator assure you that things will be coming to a close soon, but left with nothing. That's maybe the only thing I might have to be a little angry about, but the stakes are low enough that I can't really get worked up about it without feeling pretty silly.