Happy clappers is a phrase created by posters who wish to introduce a negative element into a conversation and do so without providing a useful analysis or comment as far as I observe.
Very few of the now established and usual suspects come on the forum to offer praise when their usual subjects of criticism play well or really add to the team performance etc.
So not arsed if you consider me a happy clapper, but I do care about the team and players, none of whom set out to play in a manner which is " not arsed, couldn't give a fuck, usual dismissive comments.
I'll clap on, and rely on the players to try and do their best, in a professional manner, and with the correct intentions.