Sometimes, when I answer a question, someone will post a comment under it suggesting an augmentation or an improvement of the answer, usually adding more information.
In these cases, should I just let the comment stand as an augmentation of my answer, or edit my answer to incorporate the content of the comment?
The advantage of the first is that the person who comments will get credit for that addition. The advantage of the second is that it is clear that the information is useful, since it is in the actual answer.