If we get more questions like Why isn't msg.sender.send getting called? should we somehow try modifying the title after it's been answered, to be more descriptive, or hint at resolution?
There could be several/many questions titled like: why-does-this-contract-not-send-a-transaction
The titles on your front page define your site, so a title should always, always best describe what the question is actually about without having to open the thread. If it doesn't, you should edit it; always. It's what helps people with those problems find your site through search.
But someone with a question may not always know the right terminology to accurately describe the problem, so if you can turn a vague title into something more descriptive, go for it. And if you realize a bit of missing context can improve understanding of the question, go ahead and add it. But I wouldn't change the title from a question into an answer, if that was what you were implying in your post.
E.g.
however…
