Settings can only be managed from your real account.

If the browser tab stays closed for a long time, you may get signed out automatically. Add "Pluto" to your home screen (browser menu → Add to Home Screen) — it'll open like an installed app and keep you signed in reliably.

Choose your unique username — this is shown to everyone, not your email. Once someone takes a username, no one else can use it.

This applies to your whole account — not just one video. Every flow you post will follow this rule.