I would like to propose that the scope of questions that are unsuitable for this site be expanded to include those where it is apparent that the user:
is clearly unsuitably qualified to attempt a practical procedure that they are seeking information about, and advice given on this website could lead to a hazardous situation arising. Example: Do I really need to wear safety glasses when I'm adding my 50:50 water:ethanol mix to my 1L bulk concentrated nitric acid beaker on my open bench?
is asking questions that would raise suspicions under the scope of 'chemicals of security concern'; those chemicals commonly used in drug and bomb making activities. I'm sure other countries have similar guidelines. If I had someone ask questions under this category at work, I'd be obliged to pass this information on to higher authorities. Example: What is a suitable alternative to ammonium nitrate that I can obtain in large quantities?
I cannot see this documented elsewhere, so forgive me if I have missed this.