Blockchain Bystanders

Much earlier, I posted on the bystander effect and how that wreaks havoc on open source software reliabilty.
Sadly, I can’t find any reference why the same error wouldn’t bug the ultimate reliability of blockchain systems. Yes, one could check back in the chain, over the oh so widely distributed elements – but does anyone ever do ..?

Hopefully, someone can give me the definitive reprove/couter-proof. Until then, I remain unhappy.

Your comments, please