Prevent Hacks with Spoutcraft

Other then waiting for the server to come back up, i've been chillin the the people in "Good Luck", hopping from server to server, whether it's Prison Servers, RP Servers, Survival, Jobs, Towns, we just chill. Anyway, we found a server called Evalon. It's a towns mcmmo/rpg server, but it allows classes and spells to be cast. (How fucking awesome are fireballs?!?) However, this server requires the Spoutcraft.jar to play. This jar, is a pre-made jar which is un-modable. Files in there prevent it from being modded. This would probably stop all the hackers the people in the server have come to hate. Meaning, no speed hacks, no light hacks, no x-rays, no forcefield, no auto-eat, no locater, no mini-map, no auto-clicker, no no-clipping, etc. I'd love to come back on this server to start fresh if you guys did choose to start a spoutcraft.jar only server. Think about it! ( btw, the admins can check whether or not the players have the spoutcraft.jar)