In view of the fact that many of the CF RL games are using higher order ASCII for their graphics, I move that the mortem files be output in UTF-8 to better preserve these higher order ASCII for display on the forum under the mortem tags.
We are already living in the 21st century, where UTF-8 is very prevalent -- many text editors (including notepad and the text box of the CF forums also) can handle UTF-8 without any problems. As such, we shouldn't have to rely on the older ideas of code pages to provide the correct glyphs for the characters we are showing in these mortem files. Doing this will also give a more professional mortem that better reflects the quality of the ASCII art used in the games.
(While I am arguing for using UTF-8 for mortem files, the same argument works for the screenshot keys that generate BBCode/plain files of the current game screen.)