Ok - Conspiracy debunked, so let's see if all this info gets disseminated to all those concerned.
Below applies to me, and unfortunately my understanding of batteries is limited at best:
Mid-size e-cigs like the eGo and Riva are not likely to explode because they have integral protection. If they all had end plugs it would also help - those with a bottom-end USB charge facility in effect have a blowout plug. Others have a sealed lower end. As single-cell units, the risk is low. However they seem to suffer from more meltdowns than any other type, perhaps because the load on them is generally higher (when using LR fittings for example) than on the minis and the protection circuitry is similar. The tiny circuits may have to take 2.5 amps, and this is a lot for micro-electronics in a very small package.
I have two 1000mah egoT batts that I use with LR cartos that I purchased last year from Cignot/MVS and they've been performing admirably and without probs. - however I don't know what type batteries they are and if I'm at any increased risk for a meltdown. Any insight would be appreciated.