That is the functionality of chat groups. Once you are in one, there is no way for someone else to remove you. You have to close the group on your own (at which point you would no longer be able to find/join a Private group).
If a group is Public, anyone can see it in the Directory and join the chat.
Removing someone from a group does not remove them from the chat room (see the first paragraph). Also, if a person is "mentioned" in a chat room (i.e., "@georgeg"), then they are added as a member of the room, even for a private group (but not of the group), and will remain a member of the chat room until they decide to leave.
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George Ganahl CCXP, GCA
Principal Technology Consultant
Genesys
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