As a newcomer, I'd like to give you my contribution to improve this wonderful site.
In general, homework help is the gold mine of such sites, you do not shows statistics, but the sites that do that show that guests are 30-50 times more numerous than regular members and homework subforums take 80% of the views. I have seen the discussion on this topic and I strongly suggest that you do not exclude homework questions. ..... But as long as you accept them you probably should improve the service. The system of putting questions 'on hold' is probably authomatic (at least I hope) as it is rather superficial and unsatisfactory.
I have been myself the victim of such a mechanism (https://physics.stackexchange.com/q/129521/): my request to know if there exists a formula has been blocked. Since when a formula is considered 'homework'? And I did not even ask for it, but just to know if it existed. I have given the result of the problem and later offered to add any further explanation in order to unblock the question, but to no avail, and I was not even considered worthy of a reply.
I'like also to call your attention to another question on hold (Average Velocity of a body moving in a circle with constant speed $v$): here Tesla has done his homework, as far as I Know, in a flawless manner, has showed it and is asking for help because the received result is probably wrong. What is the sense of blocking such a neat question? I was not allowed to comment as I had not yet 50 points, now I reached that benchmark and will leave a comment and reassure him. I thank you for your attention, and hope my remarks can be of any use to the community.
if you want to have a site for an élite of scholars you'd better drop the Homework question altogether, if you want to widen your audience and raise a new generation of physicists without driving out the scholars, you can have a separate forum for homework.
But you can't have it both ways, that was the gist of my contribution. I was pointing out what probably escapes you from your perspective: that your current policy appears non-consistent, and probably is. I hope you get the following as a sincere attempt to help you and not as criticism (or Cicero pro domo sua):
Tesla has done some impeccable homework, his result doesn't match and he calls for help: what is your response? you first let someone give him a wrong answer/advice and then block the questions commenting:
"Homework-like questions should ask about a specific physics concept and show some effort to work through the problem. We want our questions to be useful to the broader community, and to future users
I, for one, was intrigued by this (rather silly) concept: he asked about 'average velocity in circular motion' and did an excellent job. You do not think so?, fair enough, then be consistent: close/eliminate/delete the useless question.
I hope you can agree that keeping it on hold forever with a wrong answer attached, is not a wise decision, is a botched-up compromise, confuses, misleads less competent readers and does not leave a good impression. Can you let me give the correct answer?
Probably I'll be showered again with down-votes, but I articulated and argumented my post, you give me the short-shift with a click. I felt it my duty to tell you what impression a student gets, and I promise will abstain in future, if you think I am a nuisance. Keep up the good work.!