Seems a shame that the events you can add are currently restricted to the very limited locations they have decided to put in (no pubs for example) but hopefully they will make regular improvements.
Graeme: it's coming soon. We just launched less than two weeks ago, so we're still in progress. We only list game stores currently due to safety and privacy concerns (it makes players generally meet in a public place - game stores). We'll be adding reporting and blocking features in the next few weeks (along with many other features), and then users will be able to enter custom addresses. Thanks for your feedback. Let me know if you have any other questions at email@example.com