I'm not suggesting we game the system, but one of the Area 51 metrics that will be evaluated at the end of the beta is the answer ratio described as:
2.5 answers per question is good, only 1 answer per question is worrying. In a healthy site, questions receive multiple answers and the best answer is voted to the top.
The intent seems clear, but the metric seems to encourage adding answers to questions that only have one answer even if that answer is probably the best answer. Should we just leave these alone or should we add additional answers when we see valid alternative answers that may not be the best answer, but by their existence help others understand what the alternatives are and why they are not the preferred answer?