Minecraft Junkie

So today I used one of the spawn teleporters and found 2 potential griefers, the reason I say potential is because it won't show who is building the statue thingy but there are some holes in it with two different names. I searched their names and didn't find any posts about them so I'm assuming they haven't got a punishment if they did grief. The names are DEVIN0905 and LuckySheet. Heres a pic of the grief.

So I was also wondering in the future what topic should this go under or what should I do about it.
Thanks, Rocky

well, i would say leave it for now, thats only a three block greif from what i can see, but if you see anybody around there ask them if they own it, but for now, there is not much you can do about it...