Why would you be entering the junction when your exit isn't clear?

at a box junction you can enter if you are turning right, despite oncoming traffic and traffic in front talso urning right (h/c 174).

yes, I know my highway code thanks ;o)

However, the post wasn't referring to box junctions (i.e those with hatched lines across them which I presume you are referring to), it was referring to the box for cyclists which is entirely different.

HoweverI don't see that there's a problem with either.

You can enter the box providing your exit is clear and the only thing blocking you is oncoming traffic.

When the lights change the oncoming traffic stops so you are able to turn, so it's not a problem. The offence is crossing the stop line when the lights are against you, which you aren't doing, or blocking the box junction because your exit is blocked (by something other than oncoming traffic), which of course you wouldn't do either ;o)

As someone who no longer has to commute, I get a warm cuddly feeling when I read posts like this. I believe that it is our elected representatives that make these laws and that it is possible to de elect them if they annoy their constituents so blaming the bobbies is not the answer, they do not make the laws, they enforce them. Just to cheer everyone up, I'm in Hanoi at the moment and to survive I have been getting in the middle of a swarm of tiddlers and doing what they do. Remember those magnificent BBC natural history documentaries about shoaling sardines and flocks of waders who defend by grouping up? well that's what they do here but in my opinion it is not the mob that saves them it is the fact that they go slowly and the odd idiot that wants to be a boy racer is chastised by grannies on motos. It really is speed that kills. From the land of really cheap beer 40p a pint, Ride safe.