You must familiarize yourself with all of the rules. Not doing so would be detrimental to yourself and others around you. Follow the rules, and your experience will be best. Break them and the appropriate punishment will be dealt.
No griefing inside of towns (except for war). Grief is, however, allowed in the wilds so beware of that if you build there.
Do not TP spawn camp
Do not PvP log
Do not use hacks or clients that give an advantage to you. Mods like VoxelMap, JourneyMap, Optifine and NEI are allowed. Combat, fly and auto mine mods/glitches are not
Do not spam, advertise, curse, or use slurs of any kind; within the filter's pre-set rules. If it's not blocked by the filter, it's fine, and in DM, Town or Nation chat rules are governed by you or your town/nation's rules
Do not impersonate staff members
Respect all staff members
Do not share accounts. Alternate accounts are allowed, provided that your main account does not gain additional perks from your alt. If you are banned and you use an alternate account to get back on the server, your alt will be banned as well as your IP
Remember, staff ALWAYS have the final say. Arguing with them will get you nowhere.