As long as it's 2-3 flags it shouldn't be that big of a problem. If you're sure no rules are broken, then the mods can remove them without it being hidden. If you get 5 flags before that, then you can assume you broke a rule by mistake; one or two might be a mistake, but at least 5 people thinking so is 99% not an overlook. Getting 5 flags is rare-ish, so you don't have to worry about your stuff hidden. You can just ignore one or two flags if you're sure of it, I guess. If anything, think of it as free marketing; flagged messages are more noticeable :P