Well, something *really* strange happened to one of my posts a couple of days ago... I tried to post an announcement of Michael "Jabba the Butt" Moore's appearance in Portland and it ended up in "general interest", did not appear in the "announcements" column, had all of its keywords deleted.
Moreover, it seemed like it happened insatantaneously... I never saw it even appear where I'd posted it, and I checked for it immediately after posting it.
It would help if the original poster initially "owned" the posting so changes to the posting areas, etc. could be made in cases such as this (and where someone has made a mistake at the outset). Then the posting ownership could change automatically after some timeout period, or be appropriated by the moderator to prevent further changes... etc...