This is a peculiar request, personally I have never seen a transcribe option on any forum that said this is a new forum software and I have had times when it has been difficult to figure out what someone is pointing out.
I think it might be a good idea and a unique feature that this forum can boast about.
Also as B!z pointed out it the collaboration feature would be handy to have around perhaps even the Devs could see a utility for it.
That's a new way of looking at it. Thanks for the suggestion!