Not sure what socialism has to do with getting multiple ticket systems to speak to each other. I sometimes worry HN is astroturfed but I tend to read comments like this more simply as trolling.
The US provides plenty of anti-socialist fervor even without astroturfing.
We also get a bit of paid-for goading, just to keep it lively. But we do just fine without it.
> Not sure what socialism has to do with
Nothing. Some people just wake up in the morning and have to interject their "socialism = bad" religion into at least one thread in order to feel they've done their evangelism for the day.
Yeh this has more to do with the failures of federation and has nothing to do with socialism.
Federation is a huge part of why Germany struggles to deliver on it's digitalization goals.
Having every podunk authority handling ticket issuance basically guarantees signing keys will eventually be stolen/misused. The lack of a robust revocation mechanism is the nail in the coffin though.