I have discussed in a previous blog post how search engines penalize content that appears too spammy with keywords. So the question is “How much is too much Keywords in a content?” SEO companies try to stuff in as much keywords as they can to make the page rank however there are times when they put in too much keywords resulting in the drop of the website in Google search rankings.
Keyword stuffing is considered unethical and this method used to work to help ranking a page. This was categorized as black hat SEO. Some would even disguise keywords by changing font color to match with the background or others have used small text to hide the keywords.
As much as possible you must avoid using the same keyword over and over. An example is writing (Playstation 3, Playstation, Playstation 3, Playstation 2). By repeating keywords over and over it drops your site relevance or gets penalized for it.
I would also advise against trying to hide the keywords in meta tags as spider bots utilized by Google ignore them nowadays. And if you try hiding keyword text through various means once it gets caught your site might end up banned on searches.
One of the ways I found out to check if your content contains too much keywords is to save the article in a document and email it to yourself. Check if it would go in your mailbox or it would direct to your spam folder.
Now why am I talking about this? It is because we use fresh content to rank and make our webpage relevant to gain better rankings. However if we do not learn how to avoid the temptation to write keywords over keywords we might end up dropping the page in searches rather than gaining better ranking.