lots are ceramic not the old tube or coil systems. lots when shut down, tip over dont retain a lot off heat. i'm not saying they don't have their problems, im just saying its not 1980s technology anymore. its all how you use them.
It's like wiring 240v 1500w elements directly into liquid systems! does that mean anyone who does it is going to get electricuted - not hardly. Many of us do it but we are aware of the dangers and reduce eliminate all the hazards.