To the right of the question there is a section of linked questions. Should that really include closed questions as well? I find it awkward to see an interesting question and go to it, only to find that it is closed. If it's not a good question, why publicize it?
Here is an example I hit today. I was reading When should I include information in my resume to indicate I have a high IQ? and saw the linked question
and I clicked on the one about a complex test, only to find it closed.
If we are supposed to improve the question so that it can be opened and answered, then having it in the list is appropriate. If not, why even link it? At the least, it would be nice to know it is closed before bothering to click on it.