Sure, the mods/admin could interpret it any way they want. (well, if it still existed.) I'm also on the Ubuntu forums and they're not a bad bunch. There are definitely much worse mods--I can't see them punishing you for stating a fact.

Just stay away from emotionally loaded statements and things should probably be cool. And sure, you could say things more bluntly...but if you try to phrase your arguments so that they're not overly emotional and one-sided then people will respect you a lot more and really look at what you're saying.

The extra time and words are worth it.