I was reading this post Reliably identify the local color of a subject in non-white light? and I saw the term "local colour". I didn't actually know what that meant. Thankfully the OP added in a wiki link to save any perceived ambiguity or confusion.
I am not suggested with start becoming a dictionary but as someone new to painting, for instance, hearing that term might not know what it means. Directing them here would be a good start.
I could argue for both sides of this. Would like to see what others think. For the most part we want to keep users in the site as much as possible but there is a limit of course.