Yes, I believe the incident did occur with stacked batteries, which is known to be more dangerous, but that wasn't my point. My point is that thermal runaway can happen, and depending on all of the variables present when a thermal runaway occurs, it "can be" potentially devastating. I personally do not subscribe to a fear based mentality, but that is not because I don't believe that bad things can, and sometimes do happen.
As far as K-100's and ICR battery kits, and sub ohming, I can't speak too much to that because I do not use K-100 mods w/ICR's, nor do I sub ohm .. But what I do know is that the reason that ICR batteries are discouraged from use with mechs is because
IF an ICR chemistry battery goes into thermal runaway, it is far "more likely" to explode and/or vent with flames than a IMR chemistry battery is .. which does not mean that an IMR cannot explode/vent with flames as well in the case of a thermal runaway, but rather it is "less likely" to do so due to its chemical make up.
So does this mean that you cannot sub ohm with an ICR battery without issue? No, it doesn't, and I have at least "heard" from a few vapers that admittedly sub ohm with ICR's, yet haven't had a problem. However, it doesn't change the FACT, that based on battery chemistry alone, IF something does goes wrong with an ICR battery, it is far more likely to go REALLY WRONG, than a IMR is.
I mean, technically I can drive a car with my feet, but that doesn't mean that its a good idea. And this how I feel about the use of ICR's in mechs
There is a reason that ICR's are not found in high drain applications such as power tools. An ICR is a high capacity battery (mah), not a high drain battery (current).
I believe the point that fivefour was trying to make is that any battery, regardless of chemistry, that is pushed to, or beyond its limits is "potentially" dangerous, and I don't find anything "fear mongering" about that, its just truth.
I think we as vapers need to stop battling over whether you can, or should use this battery, or sub ohm that low, and just stay focused on educating vapers about battery chemistry, and ohms laws so that vapers can make their own informed decisions.