Keyword stuffing is as cute as a teddy bear that is losing their stuffing - don't do it.
A Google Webmaster Help thread has one site owner complaining his site suddenly dropped in the rankings.
Why? Well, Google's John Mueller said it doesn't help that your site's home page has over 300 mentions of the term "batteries" throughout the page, especially in the footer. I viewed the source code of just the home page and there are over 600 mentions of the word "batteries," not counting the alternatives of the word.
Google's John Mueller said:
I don't see any technical issue (eg with the robots.txt) here, the main thing I noticed was when looking at your homepage's source how frequently you're using some of those keywords (eg "batteries" which I see over 300 times there, especially in the footer where these are also hidden). In general, our algorithms might pick up issues like that (and our webmaster guidelines recommend not doing that), and in turn not know whether they can trust your site at all. Even if that content has been there longer, If you don't need it on your pages, and especially if it's just for search engines, I'd recommend cleaning that up, so that the algorithms are able to trust the content on there, and to give it its appropriate weight in the search results.
So don't be cute. :-)
Forum discussion at Google Webmaster Help.
Image credit to BigStockPhoto for injured teddy bear
