We had the same issue over the last weekend… Some random guy just showed up and made a square building just by the end of our protection. We surrounded him to prevent further griefing and when he logged he instantly came to us asking what happened, but didn’t listen to word we were saying. Then started building squares all around the city to grief us… In the end he agreed to cooperate but devs could do nothing about it lol.
This is unacceptable and shouldn’t be a thing. I wonder why these griefers always choose pretty locations