I have had, a couple of times, encountered a situation where I asked a question whose answer I wanted to know but didn't consider critical enough to attach a bounty to.
Yet, in the process of answering, someone's answer not only was the best, but actually taught me information greatly more valuable than i anticipated to arise from that question.
As an example: in a question on pros/cons of using exceptions as constructor error handlers in Perl; one of the answers actually taught me the first significant new fact about Perl I learned since beginning of the year [that somehow I missed out on the fact that
die can throw an entire object and not just a string since I almost never used
die in my many years of Perl development. I know - shame on me]).
That answer, IMHO, deserved a lot more than 25 rep points I could give - I'd have gladly given a post-factum bounty to the person who provided this insight.
So the questions are:
is there such a mechanism on SO?
If no, do you consider it a good idea to add?
If good idea, how easy/difficult would it be?