I just banned BinkyDude and AmortusR. After they griefed my office yesterday and stole stuff out of it, I tried to not overreact and did not do anything right away. I slept over it and also read the logs. The conclusion is that they griefed intentionally and with the goal of removing items from my office. So it’s a ban.
Additional note for understanding: They exploited a minecraft bug to get a dragon egg out of my office. After it succeeded once, they went on to get all 4. If someone had tried something once to prove a concept, told me about it and left it at that, it would have been a different story. But to go on for another 3 times is enough to make me ban even donators and architects from the server.