"When will it end?
Yes, that's just it, it WON'T!.....It will only keep snow-balling" and only gets many FOLDS worse every single breeding season.
I see this on a daily basis with practically every single type of snake in the hobby now.
Pretty soon, the label should simply read..."SNAKE" on their deli cups, because nobody will know what the hell they really are at all.
All the crap I continually hear about "honest representation" at the time the crosses are sold doesn't mean diddly-squat, accept for possibly that one single initial purchase where the correct information might get exchanged, whether or not the buyer retains this, or documents the precise lineage is another story altogether though, and I see THAT happen all the time too!.
Once those man-made crosses leave a table, all their offspring, and their offsprings offspring, and so on are FAR MORE often than not sold as whatever the heck they best represent......THAT is the true reality of how this hobby works, and HAS always worked....like it or not!
Anyway, sorry for the rambling, but you probably already know that is what REALLY happens. In my opinion, corns are probably the least of the problems as far as "counterfeit" crosses go, but nonetheless are here to stay.
Nobody ever seems to think before they produce something that once the offspring of a cross are sold, they can never, ever be recalled, and are out there forever folks.
~Doug
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"a snake in the grass is a GOOD thing" 
my website -Serpentine Specialties