Yeah, the explorers among us have found quite a few systems that require permits to enter... some of those stars are waaaay out in the void.
I had a discussion with other forum members about blocked systems in the witchhead or orion nebulae (don't really remember which one)... funny thing was, the other pilot saw systems as "permit only" that I myself could enter without any problems and vice versa...
Strange thing, some of these might be a relic of sorts, although we noticed those "individually blocked systems" definitely after launch on December 16...
Haggis McMoose,
System sneaker