Delete account sits at the end of Account settings in Kemble Work and My account in Kemble Circle. It asks for your password or a two-step code, signs you out everywhere at once, and deletes the account 14 days later, with an email when you ask and a reminder three days before. Signing in again before then keeps the account. If you are the only owner of a workspace or community, you are asked to hand it over first. What you said to others stays, under Deleted user.
Request my data, under Settings › Your data, makes one file of your profile, your settings, and the messages, reactions and files you wrote or uploaded in every workspace and community you belong to. Nothing of anybody else’s is in it. We email you when it is ready, with a link to Settings rather than to the file, and the file is deleted after 7 days.