The topic has been mentioned before by ymb1 in this Meta post:
On a related note, the tag homework was created, but I deleted it, as it is an orphan tag, and I don't see what value it adds to the question, whether it's on or off-topic (feel free to discuss this point as well).
But there was no discussion on that particular point. I tend to agree with this, it is a meta tag that adds nothing relevant to the question. What do you think?