I think it's fair to say that if FCC goes after a Byelaw 18 offence, they'll win. That's why it's a very dangerous law that is potentially open to abuse, as I can't see why FCC doesn't just use this for every single person. If they're settling out of court, no magistrate will get upset about things not being dealt with another way (such as a PF) and FCC can make quite a bit of money.
This case seems to have had the offer of a PF at the start, which was refused, but if it was refused simply because someone didn't want to pay in full - that's concerning.
I know we can only go by what we read from the 'victims' but think of all the potential abuse.
At the moment, if I lost my season ticket. I would expect a penalty fare, then the chance to get a refund and pay an admin fee to get a replacement. One replacement per year, then I'm stuffed. Now, why not just do me for byelaw 18 and make me settle out of court for £200-300? Then let me get a replacement season with a £10 fee.
Or I just lose a single ticket, but have a receipt. A receipt isn't valid for travel but proves there's no intent - I just lost it (maybe my wallet too). Again, why show any discretion? Another £200-300 to keep it out of court please; kerching.
In both cases, I failed to present a valid ticket (or ANY ticket) and the circumstances don't matter.
Or another example; outdoor TVM that is badly covered. When wet, the touchscreen doesn't work but that isn't a fault that can be detected and sent to control to confirm it is out of order. AFAIK there's no way it can be checked on the basis that it may not have been used for hours (making it quite likely it was not working even if it appeared to be working as far as the machine itself thought). No chance of claiming there weren't facilities available as the TVM shows as working - so another £200-300 will do nicely...
Might as well get rid of PFs. I accept that £20 is too low for fare evaders (compared to £40/£80 with TfL) but PFs were never meant to be used for fare evaders. They, as Yorkie regularly says, there for people who make innocent mistakes. And now it seems FCC isn't considering them good enough if there's any possible chance of seeking an out of court settlement instead.