While I was banned, (go figure) a mod touched up my island and got rid of things they thought where violations and put a sign there to tell me why they got rid of it (What they got rid of were actually my high-tech lag-free water redstone bits). That is what I meant by signs and altered landscape... on my island... I've got work to do. (thanks mods)
Something which you would probably understand as being reasonable about this AFK mining is that (as you definately know thanks to your proficiency in reading everything) it is DEFAULT to minecraft. What I mean by this is that in EVERYONE'S copy of the game, there is an escape menu, and in that escape menu there is a control menu (yes, this is still in every copy of minecraft), and in that control menu you can bind any key to attack. Anyone, any minecraft copy, anytime. The reason for all this emphasis is that I have mentioned this countless times (probably three times) as you may know.
My point in all this? Everyone can do it, and if everyone can, it is... (are you ready) fair.
Easy, simple, not hard to comprehend, and yes... fair. Wow!