Why is this necessary? None of the other TG events have this!
Diva Las Vegas is far more mainstream-oriented than any other major TG events.
All other major TG events occur under controlled conditions and under those conditions the concerns about these three topics are often unnecessary.
The same can usually be said for other activities in which you might have participated, such as support group meetings, Pride festivities, "Girls Night Out" activities, "alternative" bars and clubs, benefit galas, Imperial Court functions, etc.
Next FAQ entry (13.05): What exactly are these rules, guidelines, or whatever it is that you call them?