Is there a consensus on how to handle questions that might have multiple valid answers when the question author is looking for a specific story? I ran into this on retro computing SE also that some people think there is only one 'right' answer that the original poster is looking for. An example is the second comment on this answer by user14111 who asks that people stop upvoting an answer to the question because it might not be the right story if OP posts further information. I answered a question about finding a video game after there was already an accepted answer because the question made me think of that when I came across it.
My thoughts are that all the sites in the SE network are more for people reading the site, and not only to find only the precise answer that OP is expecting, but any valid answer to the question posted. The 'Accepted' mark along with user votes should drive the scoring. The answer in this case is well-written with good references, quotes, facts to help identify it, and a few other possibilities if the main result isn't correct. If I ran across this question then the answer seems to fit the bill and I would like to upvote it.
In another case a question already had an accepted answer verified by OP, but there was another answer posted that provided a viable alternative answer to the question. If I ran across the question, I would have been thinking about the second answer and was glad it was there.
So I'm asking if it's bad form to provide multiple answers, or upvote answers that are technically not what OP was looking for. In the extreme case I would think all answers should be deleted that are incorrect after a 'correct' answer was found.
In the particular linked case since there is an answer with so many upvotes, I don't know if the question should even be edited with new information. A lot of people found the answer to the question helpful that they upvoted it. If new information is provided in comments and someone posts a different answer that OP accepts, won't that appear at the top with the highest voted answer, which is valid for the original question appear second?