Additionally, when I add to a personal chat someone who doesn’t belong to the group, there is no warning. The recipient will be added, but won’t be notified (obviously), but neither will I that he doesn’t have access to the chat.
Here I added Arkshine to the chat, but he doesn’t know. And if I didn’t know that he Didn’t request access to the closed chat group, I wouldn’t know that he doesn’t know unless I @ him (since there is now a warning).
edit: oops, I think that is was @JimPas was saying. My English being what it is, I can’t always grasp what some say… 