Instead of a "Thanks" button, replace the functionality with a simple "Yes/No" (Check/X) to allow users to validate whether or not a 'Report' is still current. As seen from other feedback, the "Thanks" function does not appear to be very popular, in which the Yes/No could address this feedback as well. The Yes/No buttons could potentially reduce duplicate reports and assist the application logic with when to expire a report. (I.E. after so many "No's" the report would expire).