My main reservation about suggestions like this is the fact that we all could take exception to any answer for all sorts of reasons if we chose to. After all, we don't all share the same opinion about what's "inappropriate" and what's not.
Such a facility could lead to a deluge of objections, and to what end? We all have the option as things stand to either not contribute to any given thread, to withdraw from it, or to ignore it altogether. I mean, there are many topics on AB to choose from, aren't there? Although, I realise that some people more or less stick to the same one or two topics. But others flit around and participate in many.
I just happen to believe that such a facility could smack of "PC" which, to be honest, is only a way to try to gag opinions which others take exception to. I thought that AB, which I know has many rules, was basically a question and answer facility available to one and all regardless of their views.