Well, even if they are, belive me there is always a chance that even the oldest ones work on a l2j server, for ex not so much time ago 5 of this exploits use to work on DeathWhisper server ^^
You can always give it a try, i can tell you it is not a waste of time (just some of them have alredy been fixed in all packs, but i had to post them any way =P)