Good idea in practice, but would it not rely on people returning after posts to annotate them appropriately? Or would it be a case of if you build it, they will come? Sadly I think many here are just here for quick answers and not appreciative of the Socratic method, so you end up with many dead posts like http://www.chemicalforums.com/index.php?topic=34418.msg131858
which I may have answered wrongly, now I look at it again as 103 may mean 103
or 1,000, but the OP has not returned, so I don't know. In the mean time, they perhaps try things we suggest, turn it in, get it wrong and so become disillusioned and don't return...
Perhaps we should revisit questions that have had prods and then answer them more fully, but how long after the OP - a week? month? 3 months?