Mr Tate also attacked the accountability of people behind the social media campaign against 2GB.
"The difference between 2GB and some catchy URL is that we
operate our radio stations in a regulated media environment," he said.
"As far as I can see, social media is accountable to no one."
Macquarie said it has asked for more information from campaign organisers but received no response.
"We requested face-to-face meetings with organisers, but I've still not met one," Mr Tate said.