I'm currently watching Star Trek TNG. While skimming through the Stack Exchange hot questions list, I saw a question in scifi.SE that spoiled the death of a character. Should I leave a comment telling the OP to change the title so other people who haven't gotten to that part of the show don't have it spoiled?
Having a good title (concise, searchable, good representation of the question/problem) is more important than anything else, so if excluding spoilers from your title results in a bad title than you should include said spoilers. However, if you can come up with a good title which excludes titles then that's great, feel free to use it.
Something else to consider is that if a user wishes to avoid seeing spoilers for a certain work they can always use the ignore tag feature.
Normally we operate on the assumption that certain things are too popular and old to be mass spoil-able. However, if you feel this isn't popular/old enough. Feel free to edit it yourself.
There are just some things that it is hard to ask about effectively without some small spoilage. We are, after all, a site dedicated to answering questions about plots, and the very nature of this is spoilerific.