The vitriol went to another level this season, when Brisbane's Courier Mail published a picture of Gallen beside the headline "At least we're not drug cheats" in an inflammatory back page story.
While he has become used to the personal barbs, Gallen says the insults have more of an effect on his family and friends, which he finds more difficult to accept.
"The Sydney papers don't miss me either, at times," he said. "I've copped it that much, and there's been some pretty heavy things said, but you do get a little bit immune to it.
"To say it doesn't bother me would be a lie. You never want someone talking bad about you, but your loved ones and friends have to put up with that and it's harder for them. That's what makes me upset."
Gallen revealed he had attempted to contact McCaw earlier this year, when he was required to interview anyone he considered to be a leader in the sporting community that might assist his own development.
"I had to do a leadership course last year after a little drama I had with the NRL and I had to interview three people.
"Richie was someone I wanted to interview but it was just too hard to get face to face with him, so I ended up doing Steve Waugh, Anna Meares and Adam Goodes.
"But he was someone I wanted to interview because I've spoken to Laurie Daley a lot about him and he thinks the world of him. He's a bloke I'd like to meet one day that's for sure."
Gallen is not an avid rugby fan but has enjoyed watching the Wallabies progress throughout the World Cup. Predictably, he's backing green and gold in Sunday's tournament final.
"It would be a major disappointment for Kiwis if they don't get the win, whereas Australia, I think everyone's proud that they made it.
"Certainly I'm immensely proud of them and being a staunch Aussie I want to see them win, of course, but it's going to be a good game."