To my understanding the report answer function could be exploited very easily. People could essentially 'gang-up' on someone who was answering and get their posts removed. The function didn't just notify us at AB HQ, it also ran on a "3-strikes" system, as soon as 3 people reported a post it would be removed, thusly it was open to abuse.
I must state clearly that reporting systems were before my time, I know nothing about them and I don't have a techie sitting near me who I can consult on things of that nature.
There will be better options for reporting answers/questions when we re-design, but for now nothing is going to change.
I do take your suggestions on-board, but there is nothing I can do until we start heading into deeper stages of development.