All it took was for one to start it. Hell, it might've been Liefeld because he's always railed on the speculation market making money off of him (I'm pretty sure his arse is still receiving royalties). Hell, he was so pissed at one point, he said he would no longer sign books if they were being witnessed for grading. I think it backfired because are a good bit of private individuals who are authorized to witness by CGC and CBCS.