Uniformity amongst link descriptions that are similar helps the user to know what to expect, especially users who are blind or have low vision or cognitive impairments. If different descriptions are used for links that are the same, the user will not be aware that they have already encountered the control elsewhere and may not know what to expect from the control. By ensuring that link descriptions are used consistently throughout a website, such confusion can be avoided.
As well as ensuring that the purpose of every link is made clear, check that the link description is used consistently across a page or across a website. Of course, if the purpose of the same link is different in different places then a different link description should be provided.
No example is available.