SpamAssassin's multiple personality disorder

SpamAssassin has become a bit overly aggressive in its filtering as of late. A few of my friends' e-mails are getting sucked up in there, so I've had to monitor it a bit more closely.

Today, however, I found this gem in there. Clearly, it was conflicted as to whether the e-mail was spam or not, though ultimately it decided it was (and was correct in this determination). What amazes me is that, even with 12.3 positive points subtracted, this e-mail still scores as spam.

Content analysis details:   (8.6 points, 5.0 required)

 pts rule name              description
---- ---------------------- --------------------------------------------------
 1.0 NO_REAL_NAME           From: does not include a real name
 0.1 FORGED_RCVD_HELO       Received: contains a forged HELO
 0.1 HTML_90_100            BODY: Message is 90% to 100% HTML
 0.0 HTML_MESSAGE           BODY: HTML included in message
 0.5 BAYES_99               BODY: Bayesian spam probability is 99 to 100%
                            [score: 1.0000]
 0.0 MIME_HTML_ONLY         BODY: Message only has text/html MIME parts
-4.3 RCVD_IN_BSP_TRUSTED    RBL: Sender is in Bonded Sender Program (trusted
                            relay)
                            [Return Path SenderScore Certified (formerly]
                      [Bonded Sender) - ]
 1.6 URIBL_SBL              Contains an URL listed in the SBL blocklist
                            [URIs: selleis.com]
 3.8 URIBL_AB_SURBL         Contains an URL listed in the AB SURBL blocklist
                            [URIs: selleis.com]
 4.1 URIBL_JP_SURBL         Contains an URL listed in the JP SURBL blocklist
                            [URIs: selleis.com]
 2.1 URIBL_WS_SURBL         Contains an URL listed in the WS SURBL blocklist
                            [URIs: selleis.com]
 3.0 URIBL_OB_SURBL         Contains an URL listed in the OB SURBL blocklist
                            [URIs: selleis.com]
 4.5 URIBL_SC_SURBL         Contains an URL listed in the SC SURBL blocklist
                            [URIs: selleis.com]
 0.0 MIME_HTML_ONLY_MULTI   Multipart message only has text/html MIME parts
-8.0 AWL                    AWL: From: address is in the auto white-list