Since curators cant see messages, there is nothing they can do to help resolve the flag short of asking the user to either email the help box, or provide a copy of the message (and I am unsure it is appropriate non employees of the site be asking for that), just remove the flagging ability on messages and replace with an email link.
I was thinking about this, but it’s also helpful to have a flag there, as a record that anyone can see if they are looking at the user’s history. Then maybe if a message is flagged, that flag can be emailed to help@inat so it doesn’t get lost?
Alternatively, I can check https://www.inaturalist.org/flags?utf8=✓&flagger_type=any&flagger_name=&flagger_user_id=&user_name=&user_id=&flaggable_type=Message&flags[]=spam&flags[]=copyright+infringement&flags[]=inappropriate&flags[]=other&reason_query=&resolved=no&resolver_name=&resolver_user_id=&commit=Filter much more regularly.
I’m now checking flagged messages daily, so I don’t think this is needed and will close this. For what it’s worth, messages are rarely flagged at all, even less so by a human.