What does "This group has ended" mean?
WhatsApp maintains advanced machine learning technology to evaluate group information including names, profile photos, and group descriptions. In addition, we provide simple options for users to make reports to us from any chat.
We prevent chat groups from maintaining certain representations, such as using particular group names, in order to meet our obligations prescribed by U.S. law related to designated terrorist organizations.
If WhatsApp has taken action to end a group, participants will no longer be able to send messages to that group.
In addition, we may ban administrators of such groups from using WhatsApp altogether.