This plugin provides a "Report Abuse" link in bbPress replies. It is designed to be used with bbPress and Gravity Forms. Download and install plugin. Create a page called "Report Abuse" (URL = /report-abuse). See customization notes below for how to change this. Create a Gravity Form. Add whatever fields you'd like users to fill out. One of them should be "Reported URL". Click the "Advanced" tab, check "Allow field to be populated dynamically", and specify bbp_report_abuse as the parameter name. Add your new form to the Report Abuse page.
Now users can click the "Report Abuse" link above any reply in your forums. They are taken to the Report Abuse page with the reporting form, and the reported URL is filled out for them already. Customization Filters
bbpress_report_abuse_label - change the phrase "Report Abuse" to something else bbpress_report_abuse_url – change the URL of the form (defaults to /report-abuse)