screen shot him being on ur island and screen shot that u told him to leave and if he hasnt left i am pretty sure he can get banned for that then he will get out of ur hair :P
Did he tpa and you accepted it maybe? If so it's you to blame Hmm I don't think mods can do anything about. They might be able idk cause I don't play a lot of skyblock.
If he is on your island and refusing to leave. You can report him for trespassing/harassing you. You will need good proof that you had asked him to leave and that he has indeed refused. Best of luck to you.
He cant possibly do anything to you're island as it is protected. he cant really do any harm. I don't think you have nothing to worry about.
I am well aware of that. I just didn't say it in my post. but the thing Is he cant not grief in any way. the only harm I can see him doing is live stocking and stealing his cobblestone. but the problem is he can set a warp and tell other players to come :/
yes I have. I have a big island but I don't give out my warp. btw I made a spelling mistake I meant to say he couldent grief at all.
For me on a few other Skyblock servers (not here) was to set up a lava trap from where they teleport at. They burn, die, and regret about whatever they've done. Otherwise, yes, it does get annoying, and good thing the owner of that server did this to prevent loss of stuff; a /kick from the island. Mods use this to kick hackers in PvP, but this... anyone can use it to make players leave the island if they feel like that player is becoming annoying. Otherwise, I feel bad about what's happening to you. Good luck with that nub :P
Place lava where he set home and block it off. Teach him not to do it :3 Atleast that is what I'd do.