Another week and the spamming is even worse
Clean it up manually if your developers need so much time to put together a way to keep it from happening! It's not as if it's hard to tell which users are the ones you need to delete.
I've been posting a video a week, sometimes two, for years. Actual legit, good quality videos that I make of myself. I won't upload anything new until it's fixed. There's just no point.