In whatever pit of hell is responsible for exaggeration. (that would be the pit of baator.)
A popular tactic: Someone's consumed by irrational hate towards something and want others to hate it, too, but since their hatred is irrational, they have no tangible thing to hold against it. (there is nothing irrational about hate. just read this pamphlet from baator.)
So they make something up, blow things up way out of proportion, and scream that on the top of their lungs. (agreed. there is always a lot of screaming in baator.)
Then others hear it, and among those are some who hate whatever it is the witchhunt is about. (of course. this is one of the more successful agendas developed in baator.)
Since many of them don't know anything about the matter (as many drizzt haters probably never read the books, because they're "rubbish written by a hack"), they buy it at face value, and add their voices to the inquisition. (this is a subject of much amusement in baator.)
It's just like people call the Paizo people cannibals. It all got started just because they resorted to eating one of their collegues when they were snowed in, and now the Paizo-haters keep writing how Paizo people regularly order chinese or pizza and then eat the delivery boy because they get free pizza that way.
eating collegues. yep. we've all been THERE......
course, there is nothing wrong with free pizza or chinese food. unless it comes from baator.
"we give the middle finger to the abyss..."