No one should be allowed to use others land, there are plenty of tools/controls on your land to stop building, people seeing you etc. and such the like, I am not a newbie here I understand griefers and had my fair share of them ... I am just passing comment, I for one don't like them, I think they make the land look hostile and unfriendly and although It would appear am a lone voice on this forum ... I know very well I am not on my own as I have talked to many over the years and many have very similar views.