Where to begin, where to begin ...
1. Its "Voldemort."
2. The lightning bolt scar was CAUSED by Voldemort's curse, he didn't "sear" it on there after the fact in a fit of pique like a branding iron. The curse Voldemort launched bounced off Harry (leaving the scar at the same time), and rebounded upon Voldemort, almost killing Voldemort himself. The scar itself is not a "curse."
The rest of the article is full of the same misstatements, errors, and outright lies. These people desperately need lives.
I haven't read a single "HP promotes witchcraft" article that wasn't full of similar errors. It has to make me wonder if half the people writing diatribes actually read the books.