MistDragon's house got griefed

In-game name: Mihai12004
What happened: While i was packing my items in storage i saw MistDragon’s home griefed
Coordinates (if applicable): -231 67 -577; -233 59 -560
Who you suspect and why: John00000007 griefed it and destroyed the donkey hut but i fixed it and led the donkey back to the hut, if you believe that i gave him full access to all of my faction chunks, please remind that i didn’t give him full access to all of faction chunks, i only gave him separate ones for his house. I know that he’s new and knows less english but this doesn’t mean he can grief a house.
Screenshots and evidence:

Was indeed John00000007, banned for a day and rolled back the damage.