Among her questions:
- What series do you read where you have had an issue with one of the books in the line-up?
- Do you cut the author loose after one miss, or do you have a limit of failed books in a series before you toss in the towel?
- What's your suggestion for that book that you struggle with in a series?
What I had in mind then were the authors who produce the occasional disappointing novel but whose novels I generally enjoy. That sometimes happens with a series too. I don't think I've ever consciously abandoned an author because of a disappointing book, but it will make me less anxious to get hold of the next one. But in reality if you read a number of books by the same author, you may begin to see that you don't always enjoy each book to the same extent.
Take my reading of Agatha Christie books for example: I haven't given every book a high rating, but that hasn't stopped me reading them. The same is true for of Alexander McCall Smith's No 1. Ladies Detective Agency series which I have found to be a bit patchy, but I am still reading them.
I do know of cases where readers have abandoned an author after a particular book. Take Karin Slaughter's SKIN PRIVILEGE for example where Karin made a move many of her fans could not condone. I will think seriously before I tackle another Peter Hoeg, and I will never read another William P. Young.
My advice is if you generally enjoy this particular series, but are hating the current book, make it a DNF, and then try the next one when it becomes available. The chances are that the author just had a bad patch, or chose a plotline that just didn't work for you.