According to SEO Link Monster the following problems with SEO strategy may cost you money and time.
Exclusively Using Formula Based Marketing
This type of marketing tends to leave a trail that is very easy to decipher and follow. This leads to poor results with search engines. Even if it did produce good results initially, competitors would be able to easily replicate your methods, thereby decreasing the effectiveness. The real disadvantage to limiting marketing to formula based techniques is that you are not able to capitalize on the attributes of your business that makes it unique. By targeting a niche market, exploring creative ways to appeal to customers, and using new and cutting edge techniques of marketing, you will lead the pack rather than trying to catch up. Always stay ahead of the competition and solidify business contacts with ethical and socially responsible marketing.
In this way, you will not only rise to the top of the search engine rankings, but you will become a leader in your field; which will open doors that could never be opened with a ‘cookie cutter’ marketing attempt. People who adapted to the market and adjusted to the changing times were able to shift their businesses to something that stayed competitive. People who could not shift with the new developments were left to close up shop. In the world of the web, this is even truer. Changes are fast and sweeping. If you cannot stay on top of current trends and the needs of an ever changing market, you will close up shop too.
For example Article marketing was a huge success in SEO link building, then Google Panda came along. Google Panda was so creative and aggressive with their search engine algorithm that they physically ‘hammered’ low quality Article directories to the bottom of the leader board.
Being Too SEO Obvious
A ‘real’ web page will not have a perfect header that is identical to the titles and links. A web page that is created to appeal to real people rather than search engines is not usually so leading. Because of this, some search engines may penalize a web site for being too obvious in their SEO attempts. In other words, search engine algorithms have been developed to try to reward websites that are using so called approved SEO strategies and penalize those who are more concerned about the search engines than the quality of their content for the end user. So try to keep your site natural and use some creativity to boost your rankings.