You can post on the forums all you want or until the cows come home. Doing so is seen is for community awareness or, in some situations, drama.
Sending in an RT is the most appropriate way to report an issue. In cases like dishonesty, scamming, and things that the community would need to know, a post here would help.
Example: some jerk is spawning out the wazzo on T5. It might be best to avoid leveling there.