Internet trolls have a bad name. But while they are best known for abuse and threats, one Israeli woman shows they can have a good side.

With her tongue firmly in her cheek, Tel Aviv comedian Dafni Gafni (not her real name) has wreaked havoc on the Facebook pages of the famous and the infamous alike.

Her targets have included the Pope, Turkish President Recep Tayyip Erdogan, the Boycott, Divestment and Sanctions (BDS) movement, Santa Klaus, Greenpeace and former Pink Floyd guitarist Roger Waters, on whose web pages she has left faux-sincere messages designed to rile their fans.

When it came to the BDS movement, she pretended to confuse the group with sexual fetish category BDSM, writing: "I bought my boyfriend a top of the line BDS f---ing machine for his birthday, and we just tried it out for the very first time.

"We made a promise that I won't untie him unless he uses our safe word 'Please stop'. I think he may have forgotten it, because he's been screaming and crying for three hours already! What should I do now?"

And on the Facebook page for Roger Waters, who has compared Israel to Nazi Germany, she asked the musician to perform in the Jewish state, saying: "Our agency has reserved a unique space near the border which used to be a peaceful Palestinian village. We have co-ordinated the removal of the surrounding olive trees to expand the venue so everyone can enjoy!"

Ms Gafni said this message was one of her favourites, "because I had the feeling that I was doing something on behalf of the greater good - although that sounds a bit pretentious.

"I was inspired by people's stupidity, the seriousness with which they take almost everything, and my will to provoke them. I started doing it four months ago as a joke for me and my friends, but I couldn't have guessed that it would go viral like this."

When asked whether she considered herself a comedian, she responded: "Comedian; Mussolini… it doesn't really matter, as long as it touches people and makes them smile."

She has needed a thick skin, with responses from fans of those she trolls ranging from astonishment to anger and even antisemitism. One supporter of Mr Rogers called her "Stupid Kike".

But the abuse has not put off the expert troll. "More and more people are now curious about who Dafni is, and when I'm exposed and receive the appropriate recognition, it might bring new and exciting opportunities."

When asked if she wanted to add anything, she said: "God save the Queen. Please tell her that I'm a big fan of her lingerie."