Today I found that the "worst" question (most downvoted) on Stack Overflow is Learning to write a compiler.
Is there a good way to find the "worst" answer?
There's no way to search for answers (in this way) right now.
You'll have to download the latest data-dump, or use a data-dump sandbox like StackQL to analyze the underlying data. This answer looks like it has roughly what you need as far as a query goes, but the results in the answer are out of date.
In the time since Jon Seigel's answer was written, the
So, you can search
Currently, this is the most downvoted answer on Stack Overflow: http://stackoverflow.com/questions/64242/rhino-mocks-typemock-moq-or-nmock-which-one-do-you-use-and-why/64278#64278
Though I wouldn't say it follows that the linked answer is the "worst" answer.