On: Show HN: A friend and I made a beautiful pastebin

So only those with access to a botnet can do this in a shorter time than 3.6 days?

The right fix would be to increase the length of your key.

"Right" by what metric? Short keys are easier to type, so it would be the wrong fix, in that respect.

Doing what giphycat does would make it better, with a large enough dictionary of adjectives/colors/animals.

Then you get URL's with easy-to-remember names like "TyrannicLavendarOrangutan"

And "right" as in your solution doesn't solve the problem. It just limits it to "people with botnets".