How bad is it to copy articles from another website? It can do something to hurm or it's just useless? Also if its a 600 articles and I change like 50 words of it in diffrent places, will it do? Thanks!
i guess you are not familiar with the latest google farmer update and duplicate content filter. google considers copying articles from other sites a great sin and punishes you for that.
Copied content impact your web pages in a negative way.... If you are not aware of Panda update, for your information, This is the Google’s latest algorithm update which is hitting the web pages with duplicate content. So, conclusion is, copied content is harmful for your pages.
Copying content from other websites will only get you shut down by Google. I recommend reading the article we have re: the Google Panda update