Yes, I totally agree. There's so much redundancy in some areas that it's simply alarming.
I don't think mods really have the time for it since they're already dealing with a lot of stuff.
I just replied on another related thread that maybe a solution to this would be to automatically lock threads after X pages (but still leave an un-lock button for the OP to use in case he needs to) because clearly the OP doesn't really care about it after he gets his replies.