I can read just a bit of html and a bit of php codes. I said read means I can identify them and know where they start and where they end. However, if you add in something foreign, I will be blind as a bat. So, it doesn’t occurred to me that there are sites which do that. They add some invisible code which link backs to them. While we won’t be able to see it, Google will. And that spells doom for those who have Adsense running on their blogs.
Weblog Tools Collection post a warning and I only knew about such occurences. So, folks, remember to download your free WordPress Themes from trusted sites only. But how do we know if the site is a trusted site? Well, I don’t know. Maybe use only the Theme Viewer from WordPress.net?