If you can catch posts you think are unfairly flagged as they happen you can also send them to hn@ycombinator.com. Even if it's a day late they can unflag it, second chance it, and/or watch the comments.
The mods hold a strong opinion that making the moderation log public in some way (so these kinds of things can be seen directly) would cause more problems and discontent than it would solve. I strongly disagree, but I respect that the mods have always delivered satisfactory answers for me when using the emailing process - which is their main counterpoint to the need for a public log.