birchy - 2:25 am on Jul 3, 2013 (gmt 0)
I sent an inquiry to Adsense Support a few hours ago. I haven't changed anything before the total clawback of all earnings, other than to add Amazon ads if the content is extra long and needs to be broken up into manageable chunks. Of course, I'm trying all sorts of changes now, but only out of desperation. I suspect from what I've read online, nothing will change until someone at Google responds to my inquiry, at the earliest. One thing I'm trying is to make text ads have a background that doesn't match the page background. I have a reasonable amount of space around the ads and they cannot be confused with the content, but it's something that I can guess might be an issue.