Lists should show the created_at date of the contacts in that specific list instead of the contact's created_at date in the account.
Before the list UI update, the created_at date within the list used to show when the contact was subscribed in that specific list.
However, now the created_at date within the list is showing the contact's first time created_at date in the account.
Having the created_at date at the list level is helpful in explaining the findings to the clients including the screenshots from the UI. Not all clients are tech savy and can use API's to fetch data however every single client can understand the UI.