I'm not much experienced wie SE systems, just seen them when googling for a specific problem, but I'm wondering if it's tailored for the type of technical questions we have here.
As far as I know, SE is mainly for one-question-one-answer topics, and while it's possible to leave comments to an answer, it's not intended to lead to long discussions. But here we deal more often with follow-up questions and people guiding through several steps, so a non-chronological order of the answers and the selection of a definite correct/best answer might not be the way to go?