At EGCB there is no ATC, and the 'bombers' are the likes of 172s and PA28s. So there's no excuse for it. And by no means are all of them are students with a heavy workload.
On downwind, the runway should be on or about the wingtip, turn base when you've just passed the downwind end.
These guys extend literally a mile or so beyond that!
WHY????
It's tempting to cut in behind them and land in front - you could have re-fuelled, put the aeroplane away, and be enjoying a coffee in the clubhouse befpore they land. But unless you know for sure that they *are* going to fly halfway to Yorkshire before turning base, you could end up just cutting them up. So you sit behind them willing them to TURN BASE NOW YOU DUMB ***###!!!!
What to do about it? I don't know
SSD