When it comes to search engines, it doesn’t matter who you are. If you use any SPAMMY techniques chances are you’re going to get booted.
Don’t believe me? Ask BMW. This week Google removed their German site BMW.de from its index for presenting “different content to search engines than you display to users.??? This and many other web design no-no’s are clearly laid out in Google’s quality guidelines.
Moral of the story – don’t cheat. Follow the guidelines.