A couple of years old, but in the early days they didn’t care about sanitizing non-English content. Leading to pearls like this:

He also didn’t invent a programming language.
For a file system you only get one murder.

Looking up how to do something, as an improved stackoverflow. Especially if it provides sources in the answer.

Boilerplate unit tests. Yes, yes, I know - use parametrized test, but it’s often not practical.

Mass refactoring. This is tricky because you need to thoroughly review it, but it saves you annoying typing.

I’m sure there’s more, it’s far from useless. But you need to know what you want it to do and how to check if done correctly.

Hm, water elementals do offer a lot of … possibilities. Lubrication might be a problem though because of all the water