Because a proportion of that support consists of "fans" of the old Wimbledon FC who chose to shat on the clubs very identity in order to pursue a two-bob commercial venture.
And if the spectator who engaged brownie was wearing one of those scarves, he may well have been one of those. They are footballs lowest form of life.
I don't blame anyone from Milton Keynes for having an interest in that franchise. You expect a bit of local interest to be drummed up when you're suddenly given a football league team on your doorstep.
But the entity of MK Dons itself, it's creators and the ex-Wimbledon bastards who follow them have no right to ever consider themselves as equals in the game.
You'd have to examine every clubs identity before you are on safe ground here....maybe even our own......easy target ...Wimbledon.