Er, well, it's spam does. 47,000 spam messages awaited me this morning, mostly a giant multipart yEnc message. For those senior citizens who still understand Usenet headers:

------------
Path: not-for-mail
From: Angelika Thonauer <thonauer@lighthouse.co.at>
Newsgroups: alt.religion.scientology
Subject: Scientology Austria [39531/39856] - "tif6GImdeWCP5.tif" yEnc (6/7)
Message-ID: <4fe97978$0$8911$882e7ee2@usenet-news.net>
X-Newsposter: newsmangler 0.1.0git (python-vanilla) - https://github.com/madcowfred/newsmangler
Date: 26 Jun 2012 08:57:28 GMT
Lines: 6007
NNTP-Posting-Host: e08d131e.usenet-news.net
X-Trace: DXC=9HCLi??][F=fi^]@@3>CU0^oXGM_6\KV0mX0AG3X_jU?ooJ_;?CenA?58@O313n:92BndJ_<L_7d7cji7RTVcd44Zc?gHXZ<73<I1;lO<Cdni4FIc^W<[CQM9
X-Complaints-To: abuse@usenet-news.net
-----------

Newsmangler is a basic binary Usenet posting program, ie not your normal method for posting.
ARS has had no OSA presence for a long while, just a few critics posting plus a couple of trolls for entertainment.

[added] Angelika Thonauer of Austria is a Scientologist:
http://www.truthaboutscientology.com/st ... nauer.html
The content appears to be files from her personal computer related to Scientology - Emails, the Vienna Celebrity Center website, spreadsheets, etc. We are somewhat puzzled - did she intend to give us this or was she hacked?

The spam was promptly cancelled by an automatic bot.