Just got information straight from Infopop, the developer of Marlin's Community System. Seems it wasn't a hacker at all, but rather a flaw on their server. Slow to no response times, improper setup and configuration, and what seems like just a bit of lack of forsight on the part of Marlin. Infopop has been working closely with them to restore their posts, so they should have things back in working order fairly soon if they're going to be able to.
It crashed again just as I'm making this post, seems to, at least so far, allow registration, yet you can't access your profile, nor make posts of any kind, reply nor start a new topic. Posts are ramdomly accepted, and deleted. Not even showing total count of members...
Well, at least they're working on it from the sounds of things, hopefully all these up and down things are a good sign,
Best Regards,
Alex Stanton