When you use so many keywords in sentence and visitor can not found anything else except keywords on your site, then it called as keyword stuffing. It is illegal method of black hat SEO and you should avoid to use it. As this method can affect your site negatively.
Keyword stuffing makes your text often unreadable. Keyword stuffing generally gets a page booted out of Google but it depends on the intent and the assurance and authority of a site – and I had anticipate it would be different rules for different verticals.
Keyword stuffing is a practice in which web masters load their pages with instances of commonly searched for keywords. keyword stuffing can be an unwise choice; many search engines penalize for keyword stuffing, and they use complex algorithms to detect signs of keyword stuffing, even when it is cleverly done.
We are use multiple keyword on web page to get higher search engine ranking known as keyword stuffing.It is fast way,but not used long time. Because we are not working with Google rules and regulations.
Keyword stuffing refers to the practice of load at home a webpage with keywords in an effort to influence a site's ranking in Google's search results. Filling pages with keywords consequences in a negative user knowledge and can harm your site's ranking. Focus on creating useful, information-rich content that uses keywords suitably and in context.
You are asking the really important factor about SEO , as best search engine Google says that key word stuffing is not good for any website and gets negitive marks so better avoid keyword stuffing in any case
Keyword stuffing is one of the method of black hat technique in SEO which is used to increase the page ranking of the website. It is nothing but unwanted or too much usage of keywords in the website. That is spamming of website content