Bit of an off-topic rant, but High-Security space in EVE Online has had plenty of issues about it, some approaching Jorb-levels:
-It used to be that any corporation could declare war on any corporation: while there were "legitimate" wars to disrupt your rival, perhaps the most common war declaration was from a corporation that specialized in extorting casual players. Who now had the delightful option of disbanding their corporation (equivalent to a guild in other MMOs) giving in and paying the danegeld (excellent way to ensure that there are Danes asking you for gold) or getting blown up by people far more experience in PvP. -Half the the things related to Citadels (the new version of a "player-owned stations) that could be anchored to High Security space as well (at least there was one exploit where you could set up a courier contract and then "turn off" the Citadel so that the delivery was impossible, and they'd have to pay a massive collateral fee.) -They had some High Security system turn into the new "Forbidden Zone" which severed non-low-security connections between some regions. Although biggest controversy(?) was that the devs gave an impression that players would be able to stop the Triglavian invasion entirely
TLDR: lot of the time, EVE Online is the example of what NOT to do when developing a sandbox MMO...