I made my account with them early on. I signed up to subscription content to eventually get around to reading, using that address. I signed up for other services, using that address, where access to that address was my only recovery option. I joined IRL community interest groups with that address.
Then I spent a long time without checking it, and they deactivated the account and I’ve lost all data and messages sent there.
And lost my discord account, too. Even though I have the correct discord credentials, discord decided to lock me out unless I can confirm I still have that tuta email address.