Griefers really piss me off, they do it so its like they're "TROLLING", i mean come on, why would you go and grief someone creation that they probably worked really hard on! They are mostly at the age 5-11 year old ragers/jerks. They are very dumb, and dont become a griefer because word will get around and you will be banned by all your favirote servers. Dont act like an idiot just to get attention. One time i made a huge ender castle for someones RP. It was beautiful and detailed and i pretty much did all of it, except for the people decorating their own rooms. And they added some random person after they left and he griefed when they left. This is why you should check everyone out before you add them. DO NOT random people, thats the best advice i could ever give you. Just friends and trustworthy people. If not you'll end up crying :(