You’re trying to suggest the man who found the exploit to get himself a “legit” 16-17 Saver then forwards his railcard to other people to photoshop?
No, it doesn't have to be the same bloke. Could be someone who legitimately holds a given railcard (without lying about their age).
You say that it is “certainly” happening (that people are using forged railcards they don’t “pass” for), but can’t show any examples where it has, not even a personal anecdote.
I've seen the example forged railcards, but as I didn't meet the individuals who possessed them I can't say how old they really were.
Are you saying that it never happens, anywhere in the country? I know which statement is more likely to be true.
Talking of forgeries though, there was a man using a passport wrapped with a cover designed to imitate the Ukrainian ones in order to get free travel where it's offered.