Mr Stark said his campaign targeting the council's decisions and spending had got residents talking.
"It's been huge, absolutely huge."
Traffic to concernedcitizen.co.nz had also increased significantly in the past two days.
"I had a number of people talk to me today and send emails saying they wanted to stand for council - I'm not interested in that ... I'm not here to push somebody else's wagon."
Mr Stark has hired a team of graphics, PR experts and writers to run the campaign. He said another billboard was in the pipeline and was being checked by a legal team.
"This thing has been so well organised and legally it's been put through the wringer."
The point of the campaign was to reach Hamilton residents, and Mr Stark said he had no plans to approach the council directly.
"It's the public who run the city via the democratic process and people become very lethargic, and I'm tired of that."
However Hamilton Mayor Julie Hardaker and councillor Angela O'Leary yesterday said they wanted Mr Stark to contact them directly with his concerns.
"We live in a democracy ... If citizens have issues and concerns and they want to voice them it would be helpful if they did it face to face ..."
Ms Hardaker pointed out that she and councillors Margaret Forsyth and Martin Gallagher were not on the council when the issues being targeted were decided.