All Siteadvisor does is put a little coloured icon next to a link.

It doesn't stop anyone from actually going to the site.

If you - as an IT chappy - googles SANS for their website address, and get a red X next to i from Siteadvisor, I bet you still go to the site as you KNOW SANS is OK.

Siteadvisor does just that - it ADVISES, not blocks.

If I listened to every bit of advice I was given, I would not be a very happy chappy! LOL!