Sure, let's bandy around psychological disorders, Graham. Let's do that.
Let's start with Mbp. Let's ignore that the syndrome is of dubious medical acceptance, and go into it.
It's where someone, desparate for approval or sympathy, invents or creates evidence of abuse or harm in another, usually a child, and perhaps colludes in creating and/ or concealing the actual sources of harm.
These sad individuals often seem unable to adequately divorce their fantasies of vulnerable people that only they can adequately protect from the reality that it is their own actions that are placing these people in harms way.
These people often engage in elaborate ruses, sometimes involving their family and friends in their deceptions. They portray any attempts to reveal their deceptions and actually causing harm as personal attacks on their blameless character.
Now. Graham Badman produced a report which, on the basis of no defencible statitstics, claimed that home educated children were at risk from their parents, that only the intervention of state appointed officers, like him and his daughter, could protect these children, despite the documented vastly worse outcomes for state cared children. Badman's daughter joined at least one home educating group under false pretences during the review. When the poor quality of the review was highlighted, further requests for information about Badman's conduct of the review was denied on the grounds it could be used to defame or villify him.
It's a classic case. There's no hope for him. In accusing the home educators of MBP, Badman was indulging in textbook projection, placing his psychological problems onto an external scapegoat.
If critically examining a man's "work" is defamatory, if telling the truth about him is villification, then call me a domestic extremist.