I read the last meeting log and the ticket related to the event report policy. I think that everyone involved in the community that ask for support/swag/reimbursement is an honest person. If somebody is late with the report, I think that there is a good reason. At least this is my approach, until I’m proved wrong. Indeed I don't see any abuse right now. Anyway having a policy is good.
After this preamble, here is my actual thought. If a report is requested after an event, on the other hand why not emphasize/publicize more the events before they are held (if the organizer wants, obviously): on the community blog, on the Fedora social channels, and so on? "Hey, we are here!" "Next week you can attend this release party", "Next sunday you can meet Fedora here".
Ciao A.