There are questions that while not duplicates, are very close to a specific concept I'm familiar with. Therefore I can quickly go find the answer in an older Stack Overflow answer, then write a quick summary, post this old answer, and a link to it.
If my answer is accepted, I feel undeserving of the earned rep. Could I award part or all of the 15 rep to the writer of the old answer? It would be manual and optional. I figured it's too complex and would be considered unfair to do this automatically.