After asking my question python usage of percentage sign- doesn't appear to be modulo or string formatting, I quickly got a response pointing out that the percent sign usage I was talking about was, in fact, string formatting. Should I update the title to reflect this? Something like "python usage of percentage sign- neither modulo nor string formatting (turned out to be string formatting)" ?
Obviously you don't generally want to stick the answer in the title (or add [SOLVED], etc.), but in cases like that one, it seems justified since it would save people the trouble of clicking on the question thinking they were going to see something that they weren't. (In this case, someone could click through thinking they would see a feature they weren't aware of and instead would just see me being kind of an idiot.) Even if this specific example should not be changed, are there instances when we should update question titles after the questions are answered to help out future searchers?
I searched meta and didn't find the answer to this. I know that variety in question titles/ lack of specificity can be good, especially in the case of duplicate questions, because it gives users more terms to search for, particularly if they may not know the right jargon. I think this is a slightly different issue.