I put this theory to the test recently. There are a few plug-ins you can buy that promise to optimize your blog posts if you install them. One is Seopressor and another one i recently purchased and installed was Easy WP Seo. Both promise that if you follow the on page factors you should see a huge boost in serps etc. But i believe that this is just theory and over optimizing a post is asking for trouble. There are approx. 26 on page factors that you should consider when trying to rank a blog post but using all of them is as damaging as not optimizing and totally ignoring these factors. So i did this test. I wrote a highly optimized post and placed it on my blog for a very competitive keyword. This blog is running on Google Adwords. Adding posts to your landing page as time goes on is a good thing and here are my results. I managed to get 100% and 2.5% keyword density. According to Easy WP Seo my post was as optimized as it could get. Released it in the wild thinking that Google was going to give some major credits but actually the opposite happened. Instead of seeing a Quality Score of at least 7 and better Google gave me a lousy 5. A QS of 5 on a post that has fulfilled 26 on page factors? Are you kidding me? What do you think Google thinks of my post organically? Probably about the same. It really doesn't see my post as being highly optimized, NO MATTER HOW RELEVANT. In fact, as i see it, because of this optimization Google has either detected my post as spam or realized that i have used some kind of un-natural way of boosting its quality therefore it has penalized me without fail. These results are very interesting to say the least. The moral of the story is, don't use all on page factors, write naturally and forget the bullshit of OP SEO. It will do more harm than good. Interestingly, all my other posts score a QS of 8 or better. These posts were written without really thinking about it. I used the most important factors in my posts but other than that i didnt give it a second thought and they rank in around the 62% optimized according to Easy WP Seo. This post is not about deterring you from buying these plug-ins its a post to warn you. Dont use all on page factors if you want to rank.