There is an individual who has posted mindless comments repeatedly in one of the more serious forums, and instead of marking each of his/her posts with a flag, could there be a way for us to report users for a more serious infraction upon the rules?
I would agree with Devoidless, the best way to report a user is to inform one of the moderators about them, or posting them in SHOPS. Personally, I check my wall and SHOPS periodically to see if there are any user complaints. From there, I can investigate it further.
Besides, just because you may not see it at work or it's effects does not mean it is not working. Like a ninja. A ninja does his job and, if done properly, no one in the wiser.