Hahahah!!!
I read somewhere today that 2 things are endless. Space and stupidity.. hahahaha
Regenerated: This area near spawn, gets regenerated by the Admins, in order to keep a clear spawn without grief from you guys that you think that a sign costs more thatn your endless game time in minecraft.
How stupid can this be?
Kick means Kick. You can re-enter the server. But, this is a warning for griefing. Therefore, remove the idea of having something yours if you havent created. You have to keep your own business and to create everywhere you go.
If you try to get profit from actions like these, this is griefing, and stealing in a way.
So, I dont believe you are banned. Just try to re-enter the server.