I think it's a good idea. While Wikipedia does a great job at this, we can't close a question as a duplicate of a Wikipedia article.
These questions do tend to get out of hand.
There is no good reason for someone to get 100 upvotes for saying "it's a short extension cord." There's also no good reason for you to net 90 rep for recognizing a display port cable. :P I think a CW for these silly rep magnets would take care of the problem nicely.