Recently I know a bug were you can break a block and jump on it you will be on that block. As I see people keep on abusing the bug I request ECC set the gamemode to Adventre so mainly people won't abuse the bug Please feel free to discuss I guess...
But then you can't break leaves any more, leaving some chests unreachable. It's also a simple bug ANYONE can abuse, it doesn't give you any advantage.
I have tried this before. Any area outside of your permissions, if you have two blocks with space above em, you can break the top one and jump on it, It's only because when you break something, it doesn't regenerate it fast enough. I'm not sure this bug can be fixed...