Are self-invoking anonymous functions bad practice?

[Video} What is a Lambda Function (a.k.a. Anonymous Function) in Python?

Debunking the Myth of "Anonymous" Data

Nikki Haley vows to abolish anonymous social media accounts: 'It's a national security threat'

Anonymous OpenAI employee allegations on Sam and Greg

ttl.sh | An anonymous & ephemeral (and free) Docker image registry

Why was the "lambda" keyword added for anonymous functions?

Brave Responds To Bing and ChatGPT With a New 'Anonymous and Secure' AI Chatbot

Anonymous structs.. How and when do you use them?

Zero-Knowledge Proofs and Anonymous Reputation in Freenet