Its actually bad for you can be penalize by search engine, specially Google because he don't like the idea of keyword stuffing. Its one way of cheating bots to have more traffic. I don't used that thing.
yeah, it can also be bad for your visitors as they don't like to read content with some recurring keywords. this can also reflect your online reputation to your visitors.
In SEO manner, its obviously wrong or bad. Often called a Blackhat Technique. I mean its quite good as search engines can easily crawl it but if they saw that the content was all being manipulated just to emphasized keywords, well they may tag your site as spammy. That's why seo's often used keywords checker tool like gorank.com to check the density of a certain keywords if it gives a good value on a site or if its give bad sign to SE like google.
i think it's part of black hat SEO.... and i think you can be penalized when you do keyword stuffing.... like you can loss your rankings or you'll be kicked out and the keyword will not rank anymore
Its bad okay, its a black hat thing and you can be penalize if search engine will catch you its your end. So i will suggest that don't ever think of it for its one of the forbidden thing in SEO.
Why are you concerned with keyword stuffing? You should be writing your articles for human readers, not search engines. I'am sorry, but my english teachers in high school and college never discussed keywords. They taught us how to write proper sentences, avoid run ons,,,,. The topic of keyword placement or keyword stuffing never came up. You should not worry about "key word stuffing" and write your articles so that people will enjoy reading them. Lets take a look at the BIG picture - you write good articles, people like your articles so they link to them. The more links you have, the higher google ranks your articles and your site. You write lousy articles that are stuffed with keywords and difficult for people to read. Nobody links to your articles, google gives your site a low ranking.