Yr right 'griffo', doggy boy has far too much time on his hands down there
As for the cts joining? Well it's been the way it currently is for many moons, it works, it's safe & it's in place for good safety reasons. Scurvy summed it up well. One main reason I see it being needed is to allow time for everyone to space manage within the circuit. As others have said, you get say 3 A/C sorted out within the circuit after some R/T chatting then someone joins base & stuffs up the whole thing, like they say, get in line mate!
Joing straight in these days even though has in my mind added dangers (due non R/T traffic) works well enough providing everyone sticks to the rules, there in lies the real problem, there's always someone who 'thinks' they know better!
CW