After posting a question, I found the answer myself, perhaps with a bit of help from the comments. To indicate to the community that it had been resolved, I appended "[Solved]" to my question's title. I also edited the question to include the answer.
Later, someone came along and reversed my edits to the question. Why did they make these changes? Now readers cannot see that my problem has been resolved!
What should I have done differently? I couldn't post an answer because my question had been closed in the mean time.