The ACL bag policy is actually pretty straightforward: it's all about safety and security. The organizers want to make sure that everyone has a great time, without any, ahem, "extra baggage" getting in the way. Think of it like a airport security check, but instead of scanning your luggage, they're scanning your bags to ensure everything is cool.
But, why the fuss about bags? It's not like you're trying to sneak in a tube of toothpaste or something (although, let's be real, who hasn't tried that at some point?). The reason behind the strict policy is to prevent any prohibited items from entering the premises, and to keep everyone safe and sound. It's like trying to find a needle in a haystack, except the needle is a potential security threat, and the haystack is a crowd of thousands of people.
