Over the decades pop stars have been criticised for many things. Keith Moon liked to blow up hotel toilets and once drove a car into a swimming pool. Such was his desire to cause chaos wherever he went that he even returned to a hotel after checking out, having initially neglected to blow up the lavatory.
Other stars have jumped on the Moon bandwagon and thrown televisions out of hotel windows, smashed up hotel rooms or generally behaved like naughty children on school trips.
Pop and rock stars have routinely been accused of encouraging children to take drugs and some have even been accused of encouraging suicide. Many have had sex with and discarded their adoring fans more frequently than changing their underwear. Others have been outright paedophiles and deviously used their status to abuse children.
For most young performers - and many groups of young people - a trip to Amsterdam would be an excuse for hedonistic debauchery. The availability of drugs, cheap drink and easy sex has made the city a magnet for rowdy groups of male tourists. Prominent attractions include a sex museum, a cannabis museum, the red light district, head shops (selling drugs not heads), cannabis cafes and a large number of clubs.
With that in mind and given that Justin Bieber is a young, outgoing, wealthy star at the top of his career, he could have done whatever he liked in Amsterdam. If he was guided by the ghosts of dead rocks stars, he might have stocked up on drugs and spent the weekend looking like Pete Doherty drowning in a sea of teenage girls.
Young Justin, however, didn't follow the example of Jim Morrison or Keith Moon but instead went with a group of friends to Anne Frank House and stayed for more than an hour. Prompted by one of the museum's guides - who told him that Anne had been a fan of the pop culture and might have liked his music - he signed the guest book.
He wrote: "Truly inspiring to be able to come here. Anne was a great girl. Hopefully she would have been a Belieber".
I'm no fan of Bieber's music but it seems ludicrous to me that he has got as much criticism for this act as he might have if he was found in brothel snorting cocaine off the body of an underage prostitute. Or just enjoying the pampered VIP lifestyle in Amsterdam and not setting foot in the house.
Who can say if Anne Frank, if she wasn't a teenager in occupied Holland living in terror of the Nazis, would have been a Belieber? She may of course been a One Direction fan - or been into grime. However, to criticise a young man for spending time at her house and thinking about her plight is grossly unfair.
Instead of welcoming the visit of Bieber and his friends, and appreciating the interest in Anne Frank this would kindle among young people, some have written him off as being self-serving. Love him or loathe him, Justin Bieber sells millions of records and has 37,000,000 Twitter followers. He doesn't need to use the Anne Frank House guest book for free advertising.
Much of the criticism of Bieber that has appeared in the press has been hastily copy and pasted from Facebook. Those with more knowledge have taken a more measured view.
Abraham Foxman, a director of the Anti-Defamation League, which was established to "stop the defamation of the Jewish people, and secure justice and fair treatment to all peoples", said: " If you read Anne Frank's diary, she was into celebrities, she was into pop culture. So for [Bieber] to say he would have hoped that she would have been a fan, it's a nice thing."
A spokesman for Anne Frank House said: "We think it is very positive that he took the time and effort to visit our museum. He was very interested in the story of Anne Frank and stayed for over an hour. We hope that his visit will inspire his fans to learn more about her life and hopefully read the diary."