I agree with this. When I started vaping, I knew NOTHING about battery safety, ohm's law, ANY of it. Thankfully, I first used an eRoll -- which is how I learned to hate unregulated vaping -- then an iTaste vv3. When I started getting interested in coil building, a few months later, I started learning about resistance, making sure a coil is safe; when I got a Sigelei Zmax, I started learning about battery safety -- but since it's a regulated mod, I still had a margin of safety. It wasn't until I had been a) building coils, and b) using external batteries, for a few months each, that I even *considered* getting a mech -- because I finally knew enough to not be a hazard to myself and my abode and those in it. Now I can use either kind of mod with a reasonable amount of safety. But I still won't use a hybrid mod -- to me, those just seem like ASKING FOR IT -- "burn my house down, please!"

There are far too many safer options to even consider it -- though granted, those Valkyries are pretty enough that I might consider it, if they had the SLIGHTEST bit of well, but they don't, so I ain't going there.
I agree that even regulated mods can have their safety issues -- iStick50, anyone?

I have a couple of iStick30s that haven't given me the slightest problem... but I trust my CoolFire IV's a great deal more... they have VENT HOLES!

Plus just the fact that they're made by Innokin would seem to indicate a much higher standard of quality. I still use my iStick30s... but if I ever see the SLIGHTEST untoward behavior from them... into the bin they go.
Andria