I must admit when I've gone over to Melbourne for Victory games at Etihad, the mood at Southern Cross station on my way to get a train back to my cousins house was always quite friendly and a bit of "Gee, that was a great game" and all that. Away from the mob mentality of the ground, the MV fans are quite good on the whole.
See - we're not all bad
What you've said though re home sides 'mob mentality' probably rings true for most A-League teams and their fans at home.