You can still add answers Rob. However, the best answer is manually selected, and isn't based on which answer has the most votes, or which answer was first. Marking an answer as 'best' will cause it to display first, and will give it more points. Not that probably any of us are chasing the points. The point of this discussion is, that people are selecting the best answer, within a couple of hours of the question being posted, when the question is being posted for replies, for a week. If you are reading and enjoying the answers to these weekly posts, which we all hope people are, then give the answers an up vote, or respond to the answers with a comment. But please don't select 'best answer', because not all the answers have been given yet, and if best answers are being selected, everybody would like the chance to be in the running, not just the first two or three people who answer.