@UnderTails#15010 Because it's not a choice. The policy on the server is those who greif are gtfo'd and rolled back. It's not just your builds on the server, and most players would appreciate getting their builds mostly back to how they were. As videogamesm12 says why the hell would someone stick around to let us roll them back, which then just results in making the admins job even more difficult to then make sure they are banned. It also assumes they haven't re-logged or the server has not re-started, and it fucks the coreprotect history up to the point that the odds are your build will be in a significantly worse state than if it had been rolled back as standard.
If you are that worried about your builds being attacked, that's what the plot world is for, and you should build in there. Otherwise expect for your builds to be subject to roll backs when we remove a griefer from the server.