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If a community is public, non-registered users can view content in the community without needing to authenticate. This means any non-registered user with a link to the community has access. However, if non-registered users click on an item of content, they cannot perform any of the social functions available to a logged-in user.
Non-registered users are unable to:
Like an item of content
Comment on an item of content
Share an item of content
Report an item of content
See and reply to existing comments underneath an item of content, posted by logged-in users
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