Okay, I will post a polite thread on the Ponycon forum directing people to this thread.
It wasn't that I felt unwelcome, it's just that I never seem to have the time to post over there these days and it seemed a bit pushy for someone who's not a regular poster to charge in and say "here's a link to a thread regarding a problem with a regular member!" I'm not out to cause trouble, especially as we all seem to have got our money back and presumably weren't charged fees (based on my own case). But the rest of the pony community should still be wary until Mandie gives a valid explanation of why it happened...