Inconsistency, irrelevance, and inauthenticity are all horrible for SEO. But what really kills SEO is when business owners try to game the system by using shortcuts and black hat techniques. Search engines are constantly changing their algorithms in an effort to keep up with the latest trends and weed out those who are trying to take advantage of the system. As a result, those who try to cheat the system by using keywords stuffing or link buying will eventually be penalized. In the end, the best way to succeed with SEO is to focus on creating high-quality content that is relevant to your target audience.