Here, then, is a list of all the non-obvious things about Twitter that I know. Consider it both a reference for people who aren’t up to their eyeballs in Twitter, and an example of how these hidden features can pile up. I’m also throwing in a couple notes on etiquette, because I think that’s strongly informed by the shape of the platform.
I didn’t find this valuable because I learned something. I found it valuable because being a user for so many users, I actually didn’t realize how many things you have to know to effectively use the service. It really is challenging for a new user. If Twitter published this as required reading for new users, no one would use Twitter.