We have discovered a problem in our workflow with @mentions. Even when permissions are limited to list level and users are only invited as guests, it is still possible to mention and see other users from the general workspace or different lists in task comments or chats. This leads to unintended visibility of names and contact details across otherwise separated areas.

It would be a great feature if mentions were also restricted according to permissions, as this would further strengthen and support the separation possibilities within ClickUp.