Google Issuing Warnings For Blocking AdSense Ads

Google has time and time again warned publishers that blocking ads will result in lower ad income. That is nothing new.

But now when some publishers are blocking ads, Google is issuing a warning in the AdSense account telling them they are making a grave mistake.

The warning says, "You have rejected ad requests, which will result in lost revenue."

A publisher posted the warning in a WebmasterWorld thread saying:

When you click on the details link - it says "Rejected ad requests"

Ad unit "UNIT NAME" has been shown on "Incorrect sites", and the site is: "googleads.g.doubleclick.net"

This user is really not sure why he received this message and he is worried.

Is this a bug or a real warning?

Forum discussion at WebmasterWorld.