Would you please prevent this from happening.
Could I suggest that if you want to discuss anything then by all means raise the subject. But what individuals write in one group may not be what they want people in another group to see.
I doubt that any permission was given by either group owner to allow this to happen and I would hope that Scooploop would not allow access to a group by individuals who are not members (open or private), otherwise we may as well not have groups and just let this individual show us what to read wherever she finds it!
I will be putting up a post for Scooploop to investigate and hopefully prevent this.