Recently several questions have had an answer accepted after only being open for a few hours and garnering only one or two responses. This is potentially stopping other relevant answers being left because it appears that the question has been completed.
Would restricting the ability to accept an answer until the question has been open for, say, 24 hours increase the chance that more people will provide an answer? Or would this deter people from actually accepting anything (something that is a bit of an issue here at UX.SE anyway?