Hmm, several years ago it was not pre-moderated...
Neverthless, IMHO, this mailing list had lost its spirit long time ago, time to move on... Stack Overflow, maybe?
As far as I know it is not moderated. There may be a "First time poster" approval issue, though. But, if you had one e-mail go through I have no idea why the other two didn't.
The list is very low traffic these days. It started "dying" when Adobe updated this forum software and stopped promoting it in favor of these forums.
I still read Flex Coders, but all the traffic moved here. I also watch the Flex category in Stack Overflow.
Thank you for the answers guys!