Вредоносное ПО на забаненном доре

Сегодня google уведомил меня по электропочте admin@doorway.tld, что на одном из дорвеев, который был забанен ещё примерно пол-года назад, обнаружено вредоносное ПО. Подобная история совсем не нова. Только непонятно, зачем сообщать мне о вредоносном ПО на сайте, который уже давным-давно исключён из индекса. Текст письма:

Dear site owner or webmaster of doorway.tld,

We recently discovered that some of your pages can cause users to be
infected with malicious software. We have begun showing a warning page
to users who visit these pages by clicking a search result on Google.com.
Below is an example URL on your site which can cause users to be
infected (space inserted to prevent accidental clicking in case your
mail client auto-links URLs):

http://doorway .tld/

Here is a link to a sample warning page:
http://www.google.com/interstitial?url=http%3A//doorway.tld/

We strongly encourage you to investigate this immediately to protect
your visitors. Although some sites intentionally distribute malicious
software, in many cases the webmaster is unaware because:

1) the site was compromised
2) the site doesn't monitor for malicious user-contributed content
3) the site displays content from an ad network that has a malicious
advertiser

If your site was compromised, it's important to not only remove the
malicious (and usually hidden) content from your pages, but to also
identify and fix the vulnerability. We suggest contacting your hosting
provider if you are unsure of how to proceed. StopBadware also has a
resource page for securing compromised sites:
http://www.stopbadware.org/home/security

Once you've secured your site, you can request that the warning be
removed by visiting http://www.stopbadware.org/home/review and
requesting a review. StopBadware and Google will jointly investigate
and reply to you with our findings. If your site is no longer harmful
to users, we will remove the warning.

Sincerely,
Google Search Quality Team