I would call the difference: A librarian has perspective, intent, and a fierce optimism honed like the edge of a knife through abrasive contact with the world.
A censor sees only wrong thought and choices without any of the qualities of a librarian.
(The Seafood in a bar that mostly serves alcohol is probably not up to code in terms of food safety, the bar might occasionally have live shows and some of the things done at the live show might not be 100% safe, the dishwasher might have taken the job because he is not a legal citizen and the bar owner pays him outside of normal employment contracts...)
But if you see another allegory then itβs a good joke.
And here I thought the point was that a librarian has the means to ask for and get 3 drinks and water, same as anyone else, but a censor (i.e. the state apparatus) has the means to make huge and unreasonable demands.
A significant part of the imagery of the joke on another level is that a librarian is there to use the bar for its intended purpose, and even within that small amount of power, the librarian knows her limits.
