I asked this questionthis question and received an excellent answeran excellent answer from DavidPostillDavidPostill, for which I am grateful.
However DavidPostill always answers questions by repeating the relevant part of the question in the answer. This might make sense in lengthy and multipart questions such as thisthis, thisthis, and thisthis; but I would imagine it to be completely unnecesary in a short and simple question like mine, or like thisthis and thisthis -- the question shouldn't need repeating in the answer.
What is the community's feeling on this?