Only a few publications like Consumer Reports actually buy the stuff they review, everyone else goes to the vendor and asks for a review copy or free membership. If their support team asks for license info or if it's linked to your email (even not a company email) it's easy to tag that license as deserving special treatment. Sometimes you suspect it's going on but there's no way to avoid it, especially when there's some sort of "preview" arrangement before the public even gets to see it.