Indeed, I've been saying this for decades now. Hacker News needs usernames to post. How long before they require real names? And then how long before they require IDs for those real names? And then how long before they need you to show up in person with your IDs for those real names? And then how long before they need you to bring notarized documents in person with your IDs for those real names?
All so that we can post online about how Google is invading our privacy?
I gave reasons for why Discord would escalate things. Your mocking example did not. That's the difference between a slippery slope fallacy and a legitimate argument.