why can i not comment on a persons pics on Similar Worlds?

why i try to comment it just says Sorry, you are unable to leave a comment for this user, at this time.

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maybe you have to exchange more stuff between one another so SW knows u can be trusted

lol

oldusercomingback · 26-30, M

@oldusercomingback written exchanges...u can't just send a picture on a DM to a person u haven't spoken to before in a DM