For which aspect, Tuttle8, the ability to edit a post or the time limit for an anonymous edit, for lack of a better term?
B. Lahey is correct on the latter, you have 5 minutes to edit before the "Edited by ..." is added to the post. It used to be 20 minutes, but was changed about 6 months ago. Does that time limit really affect anything other than telling others that you have edited something. It's hardly a stigma.