We definitely plan to deliver this feature!

Totally agree, would love this! Could even have it be an option on an individual book (e.g. if you want to go for another book to complete the prompt, you can, or you can decide the attempt was good enough :) )

This would be a huge help for basically all of the challenges honestly. I have a higher tolerance to push myself through books that I've added to something like the Genre Challenge because the whole point is to push you to read things you wouldn't ordinarily, but if I give a thriller a solid try and it's just not my jam, I want that to count for the Challenge instead of me having to then go try another thing in that genre.