No. I don't EVER trust 0 confirmations. That's not how its supposed to work in Bitcorn.
Yet it did. Work, that is. Hmm.
Before I metaphorically rip you a new asshole, please show me the part in the Bitcoin white paper that tells us to trust 0 confirmation transactions.
...and the counter would be, show me in the original whitepaper where it says use LN or some other equivalent. Just because it specifically doesn't exist in the original text doesn't mean it can't in the future. 0conf acceptance is a choice and certainly reserved for those you deem "trustworthy" (friends/family) or for immaterial amounts. If you don't care to use them, don't. Having said all this, I think BCH is a joke.