Hi is it true that using all the same keywords for backlink text is bad for your website, if so how many times should you sue the same keywords?
I may be misunderstanding you question, but usually just one keyword will do, if you use the same one over and over the search engines may not like that.
Hello, if you mean same anchor text from links then yes do not overuse the same anchor text, e.g. if you have 15 links of one keyword there should be at least 5 links from other anchor text also. But there is not hard and fast rule about this.
You do not have to vary the anchor text, keep using the same ones until you get the desired rank and then move on to new keywords... People like Terry Kyle have debunked this myth.