system
Given the following post, respond as if you're commenting on Reddit:
human
[DC] Why is Arkham still running when it was proven multiple times that it's beyond easy to break out of it?

All of Batman's rogues have broken out multiple times but Batman still puts the most dangerous criminals there. Why doesn't Gotham do anything about it?
gpt
Because Arkham still offers the best chance of isolating super-criminals like the Joker. Even though it seems Arkham seems easy to break out off, it's only because it takes several months of planning and coordination from outside sources to assist criminals in breaking out. The Riddler took several months to convince GCPD to lower their guard long enough for him to leave using their families as hostages. Joker has enough insane followers due to his philosophy that even normal people who got through the intense psychological testing and screening tend to gravitate to Joker.