21 amps is exceptionally dangerous if the battery's CDR is 10. I view the AW IMR as a gold standard battery with regards to safety (safe battery chemistry, good QC, performs like the manufacturer's ratings say it will)-when it is used properly. An AW 18650 IMR has a CDR of 10, if it is used in an application where its current demand was 21 amps for continuous use, it will likely fail and vent. Should the emergency vent be located at the end of the cap for the tube mod. expansion could well prevent the vent from functioning. In that case, where the pressure has no viable vent, you have an real explosion hazard.
Are sub-ohm dangers exaggerated? Maybe they are, I grant you that. However, I would rather misrepresent the danger as too much than as too little. I concur with your point that eGo's are potentially just as dangerous (and fail more frequently) when abused, but does that change the responsibility we have as veterans to inform new users about sub-ohm dangers?
There are lots of very safe battery options out there. I am not sure that every user knows about them. I don't view my sub-ohm set up (in my hands) as significantly more dangerous than my ProVari...but I do view the use of these set ups by users with insufficient knowledge as a very real hazard. If I had to hand a device to a new user, do you agree I should hand them my ProVari with a 1.2 ohm coil and built-in protections instead of my Caravela and its unregulated dual coil sub-ohm rda?
Good thing vapers don't continuously discharge. Vapers pulse, which is defined as 30 second bursts.
I agree that education is key and said as much. I understand that people should err on the side of caution and I practice that. I typically draw no more than 8-10 amps with a battery that is capable of pulsing 60 amps. However, I don't believe in exaggerating the dangers and lying to people about the dangers. I question some posters motives in doing so.