IMO the reviews here at RR are only removed if they are found to be in violation, or enforcement, of the
WEB SITE TERMS AND CONDITIONS OF USE AGREEMENT, mainly the 16 points listed (scroll down the page a little). They are customer reviews after all. To alter a review page, for good or bad, would be biased. On occasion a temporary admin note may appear on a review page for such things, or in one recent case where a possible security risk was found the sites link was removed. Many of the sites in the
Online Scam Stores - A list and guide also have review pages. In this case the problem has been posted in the forums just as ER has done above. You also must consider what may happen if RR did link to such a document only to have the case dismissed or dropped. The merchant may then have grounds for a legal case against RR for lost business,liable, and such.
Its up to the consumer to decide, and look into, which merchants to use. Believe it or not some people would likely even attempt to get a deal from a website called, 'wearethiefs.com'.

Heck, someone must be buying from all these spammers or they would not be spamming. If you haven't already seen it, here is a case in point;
centralplasma.net SCAM or NOT?