It's becoming a bit cliche but the boys around him don't seem to mind.
I bet blokes like Newman, Deledio, Jackson etc would prefer he didn't do it. They probably think to themselves"aww gee I miss the days when we could belt out the song without that goose having to make it all about himself". I didn't realise you could add little bits into the song whenever you feel like it. Who is going to do it when Riewoldt retires? It's so fantastic, so someone will have to do it