Very similar to this unanswered meta question. Should we allow the obfuscating a character's name when the question is about his/her/its death? In particular, this question about Merlin (BBC) was originally titled:
After this character's death, why does Merlin not return?
To me, this is acceptable and proper. I would know not to go into that question, because I have not seen all of the episodes yet.
This question about Supernatural was edited to remove the spoiler from the title.
This question about the Hunger Games was framed this way, and went unedited.
This question about Ender's Game was also framed this way, and not edited.
Lastly, this question about Harry Potter originally contained the character's name, but was later changed to use the generic "this character" phrasing.