I have made so far three questions in Parenting.SE, and I believe I got very good advice in the answers. In the other SE groups I participate accepting an answer is a straightforward process as the answers to a well formulated question are easy to test or verify.
However in (some) parenting situations advice is not easy to test. (Particularly it is not easy to test independently several approaches and observe results in a short time.)
I don't like either having the question open for too long and the answers unaccepted, so: What should be good criteria to accept good advice as accepted answer?