NFR Place which has been moved to archived status should not be visible for members of karrot group in ‘List of Favourite places (on the left side in menu) - if you would want to remove from that ‘Favorites list’ you have to bring it back from archived status to do so. So everyone who clicked ‘Favorite star’ in such Place, once it is archived is removed from its list ‘watchers’.
Which I can confirm easily, place 113456 is archived, but visible:
Report from a user in Warsaw:
Which I can confirm easily, place 113456 is archived, but visible: