Someone who knows all about online abuse is Londonderry-born singer Nadine Coyle. Trolls have cascaded her with vile comments about her distinctive accent.
According to one linguistics expert, this is a form of racism. It is difficult to know what sort of sorry figures sit anonymously behind their laptop keyboards and write offensive comments about someone because of the way that person speaks.
Nadine can expect even more vitriol to come her way as she joins I'm A Celebrity...Get Me Out Of Here.
But she knows she is a celebrity and the trolls are not worthy of her notice. And they cannot reach her in the jungle.