Judges were previously referred to in the thread as men/man - I was simply pointing out that there are some female judges, though not many.
'Brought in line' refers to a judge failing to stick to the judging criteria for which scores are produced (ie impact, lighting, composition, narrative, etc etc) - in other words a judge who might be allowing their personal preferences to come to bear. If that happens the Chair will remind the judges that they must adhere to the scoring structure.
Not sure what you mean by 'versions'. The system is very similar between the four recognized awarding bodies (BIPP, The Societies, MPA, RPS) and very often the same judges sit on each panel. The scoring system is broadly standardized as well but there are some differences. For example the RPS allows, at Licentiate level, just 10 images in a panel - everywhere else it's 20.
I hope that clarifies things. There are a lot of misunderstandings about qualifications - particularly the absurd view amongst some commentators that you simply write out a cheque and obtain your letters (though you do have to keep up your membership to retain them - however the achievement cannot be taken away from you). Not many seem to realise how challenging it can be, and each distinction is a real milestone. If that's the path any individual chooses to go down then it's because they feel it will benefit them - my distinctions have been of tremendous benefit to me, in all sorts of ways. If it's not for you that's fine.