It really winds me up when pilots call entering the hold. The landing order is already decided by then and a call "entering the hold at time xx" is, in my opinion, a waste of RT time.
I don't know what Cap 413 says, but I'd be much happier if no-one mentioned "taking up the hold"
Mind you, when you consider the traffic levels moved by the TMA and in particular, Heathrow and Gatwick hourly movements, the majority of pilots must be really quite slick. It's important to give credit to that majority when airing the critisisms of the few.