I have to bring up couple points, how I see this development as European.
So many farmer can't prevent cross-pollinations and they think that hell yeah... Let's make new variety, with asskicking, selling name, such as Naga Viper. Almost everyone can start selling own crosses with own name. Just take naga or bhut and add something clever till end... Competition is hard. Sellers grow as many varieties as possible, within same small GH. The don't care what that second generation is. Only how much they can sell this shit!
As here in Finland we have maybe most cultivar varieties in hole world... Just because, from beginning most cultivar seeds are from Fatalii. Not all over internets...
Someone said differences between different cultures,languages and location. That's so true!
For example this quote:
"
Fresh chile names can be very confusing in Southern California. Our goal is to sort this out. The name PASILLA means "little raisin," a reference to the raisiny appearance and aroma of the this very distinctive chile that the West Coast calls CHILACA. This misnomer was started in northwestern Mexico and Californians perpetuate it. To further complicate the issue, a Oaxacan chile with the same color but an entirely different appearance and flavor is called pasilla. That Oaxacan pasilla is very likely the progenitor of the long green/red New Mexican Chile which is said to have had the pasilla as an ancestor. In the Oaxaca area, the true pasilla is known as pasilla de Mexico, while the local cultivar is the pasilla de Oaxaca or just pasilla. Confused? Welcome to our nightmare."
They all mess up that end-user, noobie chilehead, who buy seeds with wrong name, that was intention.
Hopefully you guys get something out of this post... My english is not so good.
P.S I have 100% non-cross-pollinated Harold St. Barts seeds
EDIT: Have to add that Fatalii have own cross: Bhut Morouga (Bhut Jolokia x Trinidad Scorpion Morouga Blend) but he won't sell it before it's stabilized to own variety (F3-F4)