A larger capacity battery contains a higher power density and while the chances of a catastrophic failure of the battery remains the same, the chances of a pipe mod turning into a pipe bomb increase with the capacity of the battery.
A:  True ... Very True ... but then to later go on and state there have yet to be incidents with 3.7v batteries (certain 18650's easily exceed 2000+mAh) ... As for "Pipe Bown" -- I wouldn't go as far as stating that is what it turns in to ... Yes, gases will try and escape via the easiest way possible, which is a far cry from a pipe bomb  
A standard resistance atomizer (say 2.2R) at 7.4v would draw 3.4amps. The concern here is exceeding the max discharge rate of the batteries. A HV atomizer on a 7.4v source will reduce the draw back below the typical max discharge rate of the batteries ~2.4amps.
A:  True.  But I still believe the #1 cause of incidents is due to the atomizer shorting itself - which has no effect on whether or not the atty was a HV atty or not.
No curse here. A mod needs to vent in order to keep the atomizer / connector in place and not in your skull. Or to prevent the entire PV from fragmenting.
A:  Well Said  haha
  haha
Sounds like ECF isn't trying to tell you what you can or can't sell. They're laying out what you can or can't sell on their venue.
A:  As suppliers, we are NOT allowed to sell anything on ECF  Everything is purchased outside of ECF
  Everything is purchased outside of ECF  Again, ECF is liable for Donations and Vendor Sponsorships.
  Again, ECF is liable for Donations and Vendor Sponsorships.