I have come across some questions that have received two separate answers from one single person. What are your thoughts on this? What I have in mind is that if the answerer has a new answer, then it is the first answer that needs to be edited with a bold "EDIT:" to introduce the new input. What do you guys think?
If the second answer has little or no relationship to the first answer (except the author) then I see no need to keep to a strict "one answer per author" regimen.
If the second answer is just a follow-up on the first then, by all means, encourage the author to merge the two.