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Pressing the "Flag" button triggers this dialog:
Clicking "Contact ACT" will open a JIRA issue (in a dedicated, publicly readable "Synapse Flagged Data" JIRA project) prompting the user to give additional info, e.g. the user's email address, the object's Synapse ID and the reason for flagging the data.
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If the user has already fulfilled the terms of use, the dialog will appear as: