Casual insult? Calling that organisation Network Fail is hardly casual given that it is in common usage both within and outside the railway - such 'nicknames' don't appear without good cause.
"mind you at least you've posted rather than clicking on the disagree button as you usually do"
Another case of a personal slight on someone who dares to disagree with your views? You are very good at this tactic which has succeeded in driving away, or expelling, several members(or ex members as they are now) whose knowledge is thus no longer available to RMweb members.