Yes, and that's part of the problem. The person who asked the question can only tell if it did supposedly solve their problem. They can't tell if the answer is

Yes, and that's part of the problem. The person who asked the question can only tell if it did supposedly solve their problem. They can't tell if the answer is actually sound advice or if it has subtle problems that another answer solves better. The accepted answer also gains the top spot, even if other answers have gained more upvotes.