It would appear one posting that the powers-to-be don't agree with gets you banished from a planet
Even after removing the offending post weeks ago... it seems
I'm still blacklisted on PLA.
I've Emailed those involved, who have promised I'll be restored, but that time has come and gone. I'm not seeing any other answer to correspondence.
Update: 10/4/2009
I've since received some correspondence to say that I'll likely be reinstated over Easter.