A burglar is still a burglar even if the door to the house is left open.
The rest of your post is just strawman drivel.
I totally agree with your first comment.
I was not saying that because it is simple to do, it is OK. It is not. Just that because it is so trivially easy to do, that I'll bet it is pretty widespread, and not limited to the staff of one paper. The temptation, given some celebs phone number, to listen to voicemails from other celebs, their ex, etc, and get a "scoop" on some affair, scandal or whatever, to someone who's whole job is about digging the dirt on people in the public eye, would be hard to resist.
Just saying that everyone is focussing on NOTW and The Sun, whereas I bet the other papers have done exactly the same. It's just not come out (yet).
And everything else I said was just pointing out the tendency for everyone to focus on one "bad guy" while ignoring all the others.
I am not defending the behaviour of NOTW, Sun etc at all: just pointing out that the other papers have been doing exactly the same thing.
Giles..