What we keep

Short version: nothing you say is saved.

Never kept

What you say. Messages only live in the server's memory and get wiped at midnight New York time, or sooner if the server restarts.
What mods see. Held and removed messages, reports and the mod log get wiped at midnight too.
Server logs never include what you say, your email or your number.

Your sign-in email or number, encrypted. It's only used to send your sign-in code, and it's never shown in the room, not even to the mods.
Your room name and how it looks.
Bans: the name, the reason, who did it and when. No messages.
Simple daily numbers, like how many people came by and how many messages went up. No names, nothing anyone said. Kept 90 days.
Sign-in codes go out through an email service (or a text service if you use your phone), so it sees where the code goes.