I actually feel like people would act differenly in public and around people, specifically blocklander to blocklander. There wouldn't be fights, it'd be more socializing, like people talking about what they do or what school they go to, or just common matters.
Although, I feel like Lord Tony would be that guy who walks past the Bronies and coughs "friends". Either way, I think everyone, specifically older people, would get along. The general idea of a convention or whatever would be cool, I'd love to meet some certain people.