Well I don't work for Britannia but we shouldn't tar them all with the same brush - I know a few BY aircrew and they seem quite decent chaps (and chapesses) to me.
However, this sort of "rage" is a symptom of the pressures and stress which we are all subject to more and more these days. What used to be a simple drive to work has now become a major obstacle etc. This does not mean that we should be uncivil to each other, quite the opposite!
Do BY crew still file return flight plans themselves? When I worked for a company which was taken over by BY we were astonished to be informed that Ops only filed the outbound flight plan and the inbound plan was left to the crews whereas we had been using computerised flight planning for a few years!