Matt Cutts, the Head of Web Spam at Google, has constantly provided communication stating that webmasters should always optimise their website for users and not search engines. In the last two years Google have enforced this philosophy stronger than ever with the deployment of major algorithmic updates such as Google Panda and Penguin. These updates have been to protect their search results from being manipulated and to eradicate spam and low-quality content from appearing in search results. Google have, and will continue to improve their search engine by putting more emphasis on social factors, user behaviour, and sharing rather than the actual HTML coding (which can be manipulated easier).
Here at Bough Digital, we see SEO as a holistic approach to digital marketing whereby it includes many different functions and departments such as content, website development, user-behaviour, partnerships and much more. Therefore, moving forward it is definitely advisable to optimise your website for users primarily but with a strong emphasis towards search engines.