That depends on how you define clone. The OBDLink for instance is NOT an elm chip, it is an elm compatible chip, which many added features that actually functions BETTER than the actual elm chip. I can't speak for the ELMScan, but I seem to recall that for while there they were using actual ELM327 chips (which aren't nearly as nice as their "clone" chip)
The difference between what we typically call a "clone" and this, is the "clone" chips copy the ELM firmware illegally onto new chips thousands of times, and often screw it up. Scantool.net writes their own chips from scratch, that happen to comply with the ELM327 datasheet so it is compatible with most ELM compatible software while providing an extra set of features.
If you don't want to get a scantool.net product, that's your loss. In my testing I've found them superior in speed, durability, and functionality in almost every way to any other ELM style tool I've tried. Get an OBDLink, it is well worth the money.
On another note, there has been some issues lately with some people, they probably thought you were trying to cause trouble and were banned to avoid any potential issues.