I don't see the problem to be honest.
If it's peoples free opinion, why shouldn't they be allowed to post it?
Sure, it might be annoying at some point but that's life.
Regarding your view on infractions - We have had this system ever since and we're running good with it.
Who are we to judge about 'stupid questions'? Of course some questions have already been answered but don't tell me you read through 100sites of posts whenever you check for an hack. Most likely you check ~5 pages of posts and then leave it and ask yourself.