how are you suggesting me to follow up? shall I get a solicitor? wroth to go to court for 2 pounds fare liability?! would say no, but worth doing it, if I can establish a precedent and improve the things for other passengers....
If you do allow this to be heard in a Court, it will only be in a Magistrates Court, and their decision will
not set any precedent for any other passenger. In the event that which ever party looses in the Magistrates Court then chooses to request an Appeal against the Decision in the Court of Appeal, then the decision of that Court of Appeal
will be capable of binding on other Courts in future,
if that decision clarifies any point of law. It would only be that clarification of the law that would be of assistance to other future trials - not the circumstnces of your incident.
Having quickly scanned your first couple of posts on here, there doesn't seem to be any point of law that could be usefully clarified by the Court of Appeal. The Byelaw Offence of being unable to produce the appropriate ticket when alighting from the train appears to be a simple matter of fact.
The costs in the Court of Appeal with professional representation will be in the thousands.
I'm not sure what assessment anyone could make that would lead them to advise that "it is worth going to court" over this incident. The only defence available to you seems to be one of sympathy for having been caught up in an unfortunate misunderstanding over a relatively minor activity, and that, sadly, is no defence.