Well, if the FF community is so great, why anyone would be afraid of global channel abusive spamming? Afterall, the problem is not the feature in itself but how people use it.
OT: What I would like to see for the search party feature is actually a board where a player can register the classes and levels for which he's willing to look for a party so we can avoid rank50 people soloing/farming while seeking for party for their lower rank jobs.