Get the best AdSense Targeting for your Site!
No, you don't necessarily need it. But the targeting of this plugin is more accurate and simply better, than what I found on the net (including the method I used in the Ads Easy). My advise would be to disable the tags in Ads Easy and use the AdSense Targeting instead.
That was a bug I couldn't encounter myself, because I have all ad-blockers disabled in my testing environment. The name of the TinyMCE plugin was AdSenseTargeting, which gets obviously blocked. Thus, GoogleIgnoreTags now it is and all should be fine.