Left to their own devices, people will assign keywords (tag or link) as they please.
They paint a rich picture of the linked content.
Keyword stuffing is the unnatural repetitive use of a specific word or phrase.
In your content….
..or your links…
My paid passion at Search Engine People sees me applying my passions and knowledge to a wide array of problems, ones I usually experience as challenges. People who know me know I love coffee.