I would like HTC to publish a standard Code of Conduct that could be enforced with community peer pressure, account suspension and banning.
A well publicized, clear and simple Code of Conduct is the first step in prevention. It provides a baseline of exceptible behavior that others can be judged by; but more importantly, serves as a positive reinforcement of what behavior is to be expected within the MA.
The Terms of Service agreement is not a Code of Conduct but it could include one, and should imo.