On Stack Exchange we are encouraged to edit other peoples posts if we believe this will make them better. When an edit is possibly controversial or I need clarification, I tend to ping the author or assume that they can revert the edit if disagreed with (easier to ask forgiveness than permission).
This makes me feel somewhat queasy about editing his post. I can't quite pinpoint it, but it doesn't feel right. Probably he would have been fine with my edit, but he's not around to clarify the unclear point anymore, and
Should I take any particular consideration when editing posts of users who are deceased?