A) Quite true it is a silver canister with a blue LED on the top. Nobody has suggested anything other than it's an indicator light to show the unit is powered up. No mystery there. Utter bollocks? I don't see any hemspherical breeding organs in the image I have, but the manufacturer's explanantion is at best misleading and at worst commercial secrecy. 

B) Inaccurate.  My head count differs from that. Nobody professed to "like it" but they did notice "an effect" repeatedly and consistently.  More than one has noted an effect on smoke rising believed to be entirely due to the equipment being operated, again repeatedly and consistently. That suggests it is more than a canister with a blue LED on it and goodbye to placebo effect too.  However, it is being evaluated for alleged sonic enhancment propreties, not smoke deflection abilities.

C) My auntie Maud once made strawberry jam.

D) None of the other subjects in this trial conducted their observations at a show, so what relevance is that comment?

The fact remains that the language being used by some in this thread certainly isn't unbiased and impartial.  Those that profess to having an objective mindset are doing a champion job of concealing it.  What's far worse than psuedo science though IMHO is psuedo scientists.

The sample of observers is far too small to draw any meaningful conclusions yet..