Citing his older daughter (I'm connected to her on Facebook via some non-show related events), it is all bogus, trumped up by a nasty ex-employee/girlfriend (dipping the pen in the company ink never works out) trying to get revenge on him. She accused him several times after they broke up and he fired her. I've met Will and Stephanie once (shop tour driving through) and nothing struck me as creepy molester about Will.
Unfortunately it is the seriousness of the charges that people remember.