British libel law makes it very dangerous to accuse anyone of anything, especially if the accusation regards a quality which would suggest that the accused is unsuitable for their job. So calling White a liar, or saying PACE is fraudulent could get someone taken to court and forced to prove that White is a liar and PACE is a fraud.
By "publishing" such statements in their comments sections, online newspapers and such might also be on the hook. Hence they will likely delete anything which crosses a pretty narrow line.
It also doesn't matter if the person (or website) posting the accusations isn't in the UK. They can still be sued in the UK. The US actually enacted a law to protect American citizens from having such judgements against them recognized in the US, primarily in reaction to the draconian libel law in the UK.
Anyhow, I suspect that those libel laws are part of the reason that it's so easy to get away with fraud and academic dishonesty in the UK. Even other academics probably prefer to turn a blind eye to blatant abuses of the scientific process rather than face a trial where they have the burden to prove that the other party has indeed engaged in fraud.
By "publishing" such statements in their comments sections, online newspapers and such might also be on the hook. Hence they will likely delete anything which crosses a pretty narrow line.
It also doesn't matter if the person (or website) posting the accusations isn't in the UK. They can still be sued in the UK. The US actually enacted a law to protect American citizens from having such judgements against them recognized in the US, primarily in reaction to the draconian libel law in the UK.
Anyhow, I suspect that those libel laws are part of the reason that it's so easy to get away with fraud and academic dishonesty in the UK. Even other academics probably prefer to turn a blind eye to blatant abuses of the scientific process rather than face a trial where they have the burden to prove that the other party has indeed engaged in fraud.