"One is that the exposure as a general thing has been great because people are finally starting to talk about it, and that's the issue with sexual violence - is that it's traditionally something that people don't talk about it.''
The shift from victim blaming to focussing on the perpetrators was great, Mr Bunkall said. "We don't see that a lot.''
However, there seemed to be a lot of backlash targeted specifically at the Roast Busters for the wider issue, he said.
"My issue is that you have these people calling for their heads and `they need to go to prison' and it's like, sweet, put them in prison....it doesn't solve the problem."
"What solves the problem is we need to look at the bigger picture and why that happened, why did Roast Busters [happen]."
"You look around at how much advertising objectifies women, the prevailing attitudes towards victim blaming and you can start to see how attitudes like this [exist].''
Auckland mother Jessie Hume was one of the organisers of the protests - held in Auckland, Hamilton, Palmerston North, Wellington, Christchurch and Dunedin.
Ms Hume said she organised the protests in conjunction with a group of young girls behind an anti-Roast Busters Facebook page.
"It was very much an organic thing, people just stood up and said `I can do this' `I can do this' and we all just worked together.''
Mt Albert MP David Shearer said the march was a useful way of demonstrating people didn't like the kind of culture that had slipped into New Zealand society.
"I've come along with my wife and daughter. I was pretty shocked by the last few weeks."
"As a father, I'm also very surprised that the police weren't able to do anything about it as they went along.''
-- Online petition --
Ms Hume has also organised an online petition calling for the Prime Minister to take action over the Roast Busters group which has already attracted more than 93,000 signatures.
The petition urges John Key to "bust the Roast Busters and show you take sexual violence seriously'' by ensuring justice for the teenage girls - some as young as 13 - who were named and shamed online when the young men claimed on Facebook to have got the girls drunk and had sex with them.
"We are asking [Justice Minister] Judith Collins to table the petition in parliament, so if we can get some time with them and sit down, we can really talk in a more specific way about what those objectives are.''
"We'd like to present the petition to parliament next week.''
Auckland mother Tania Domett, 42, was at the protest march with her daughter Stella, 12, and said she wanted to let the thousands of rape victims in New Zealand know they had support.
"I think it's really time to get out there from all walks of life in New Zealand and show that this is not acceptable and we need to effect a culture change in how we deal with the issues of sex and our young people."
"I think the sexualisation of children is really a big issue. I think there's not enough discussion about consent, I think consent is the main critical factor here and I think boys and girls need to know what that is,'' Ms Domett said.
"I think it's a difficult conversation that parents need to have with their children."
"A lot of schools are involved in sex education and some parents think that kind of abdicates them of their responsibility.''
We needed to change the way rape is reported and how police and the legal system respond to it, Ms Domett said.
"That's the critical, critical factor that needs to be addressed."
"It's not just about `ra ra ra' women's rights and lets just go on a jolly old protest march, we actually need to effect some really meaningful change in that area.''
Good turnout at Auckland Anti Rape Culture March. Seen lots of @nzlabour MPs & @janlogie & lots of great people! pic.twitter.com/4e1R5ucLS5
Big crowd at Wellington march against rape and violence. pic.twitter.com/N0otWcXYN0
Great turn out at No More Rape march in Wellington pic.twitter.com/PbUCLr85nK
100s rally against rape in wellington - solidarity #eVAW pic.twitter.com/bKL4D2cmP9
Protest rallies:
• Auckland, QEII Square, 2pm
• Hamilton, Garden Place,7.30pm
• Palmerston North, Cenotaph in the Square, 2pm
• Wellington, Cuba Mall, 2pm
• Christchurch, Bridge of Remembrance, 12pm
• Dunedin, Museum lawn, 11am