More → Account & verification:
- Display name: 2–30 characters. You can change it up to twice a day and 4 times a week.
- Username: unique, 3–20 Latin letters (digits, _ and . allowed), starting with a letter. It can be changed once a year. Before that you send a change request with a reason, and the team reviews it. Changing it stops your old invite link.
- Phone number and email: add and verify them — they protect your account and let you sign in on a new phone. Nobody sees them — others see only your name and username.