> If you delete your account, we will delete your data within 30 days, except we may retain a limited set of data for longer where required or permitted by law.

It's this expression that breaks the deal for me. There's always such wide, vague exception that might be interpreted differently each time, depending on the context!

Logically and legally equivalent to "we will keep your data forever unless legally required to delete it.".

They factually already have a legal requirement to keep every single chat so it's pretty misleading to say they're hard deleted when they never are