To me, yes. A true brony watches and understands the show via watching it. If a so-called-brony comes up and only watches 2 episodes, he/she won't understand it as much because they have only watched so little. To me, the definition of "brony" is a lover and fan of the show, My Little Pony Generation 4. If a person has not watched the show enough to understand the plot, characters and story, then they cannot be called a brony in my opinion. I have heard of part-bronies and closet-bronies, though.