http://lord.nuklear.org/rules_full.html The rules for all three realms can be found here.
Camping
Sitting in one spot to amass excessive gold, experience, and/or equipment. See full rules for clear explanation regarding the meaning of this. Not Allowed in Red or Green Realms
The only realm where you're allowed to "camp" is Blue Realm. It's also worth to point out that you are NOT allowed to online duel kill (attack/kill another player who is ONLINE the same time as you) without consent in Blue.
The only realm where you can duel kill without consent is Red.
I strongly feel you should read the full rules above by referring to the above link I posted.
If you were disconnected, you should try to relogin after the realm allows you to do so (typically after 5 minutes)
If for some reason you are unable to relogin, or if you are killed before you are able to relogin, you should post a thread in the Talk to Admins forum so everyone is aware of what happened.
If you were in fact disconnected, I know it can be frustrating, but it happens every once in a while and unfortunately there's no way to prevent it from happening sometimes.