It only returns a subset of user data https://github.com/NodeBB/NodeBB/blob/master/src/posts/user.js#L24-L28
If you want to add more you can do so in a plugin, using the hook filter:posts.modifyUserInfo
I am not sure how many of you are readers here, but I hope I am not alone! Let's set a goal what book(s) you want to finish this upcoming December. Wait. Finishing a book is a daunting process. Let me rephrase.
Let's set a goal what book(s) you want to start this upcoming December, and then another goal when you expect to finish it. I just ordered a book from Amazon, Regression to the Mean (another one is for my friend, a birthday gift).
p/s: I got few more books actually. "The Alchemist: Three Central Bankers and a World on Fire" and also "Franz Kafka - Metamorphosis and Other Short Stories". Reading, in all actuality, is a daunting process... especially the microbiology textbook