I cleaned up the linked thread of off-topic posts. Reporting is the best way, as grapes911 stated, we can't see all of the posts. There's generally
500 new members a day (many of which create at least one post) and mods are volunteers (unpaid) and are only around when we can. We are not assigned specific forums to watch, we just browse as we like. The iPhone forums have been a very popular area since the iPhone came out and it's only increasing. There's no reason to believe adding more mods to those forums would be a "short while."
If you have specific suggestions for updating the forum rules feel free to suggest them here. There's nothing wrong with people posting links to existing threads on the topic. In this particular case I checked a few of the linked threads and they were irrelevant to the question posed so I deemed them off-topic, which there is already a rule in place for.