I don't understand the problem here. If you don't want a 5-year-old game spoiled that you're just starting, don't read a thread about it.
A thread about a new game/book/whatever is more likely to have people looking in it that haven't finished it yet, but are interested. This is why the spoiler rule for new games. If a game is years old, most people who care to know already know, and the others should be smart enough to avoid threads about it.
Really, it's quite pointless to say in the FF7 forum (SPOILER)Aeris dies when everyone reading that thread already knows.
