We really don't need a "policy" about the best way to phrase a question and we certainly don't need a policy-enforcement task force to routinely edit questions into compliance.
It's fine to talk about this stuff in meta to improve your own performance and best practices, but I wouldn't recommend these types of routine, minor edits on other people's posts for the sake of turning "six of one" into "half a dozen of the other."
If you look at the questions on the front page, they are phrased in various ways: inquiries, paraphrasing, statements, catchphrases, etc. Every once in awhile, a well-meaning users comes through and launches a self-appointed campaign to rephrase all the questions to a "standard format." And it is almost always met with resentment or hostility.
The problem with the specific change you cited above — while it's not the end of the world — is that you took someone's trouble-shooting problem and turned it into a thread for general advice. If someone took my question "How do I save my family photos from smoke damage?" and turned it into something like "What are some good ways to prevent fires in my house?", I'm not sure I would find that helpful.
I don't want to make everyone gun-shy about editing questions when it makes the question substantively better. Editing is a valuable service to this site. But make sure that substance is there… then if you happen to be in there making the question better, then sure, go ahead and fix some random spelling error, cross your t's and dot your i's.