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Still, the word "trust" doesn't fit. Would you say you "trust" BTC nodes when you sync up with the BTC Blockchain? Probably not

So if the node is effectively sending you information, I am with the opinion that you are trusting it. Even if the information is cryptography secure. So yes too for BTC or any other p2p connection where you know the source and destination of the communication. But I got what you mean with it. I think I see the point. I will try to rephrase I want to say.

EDIT: Done.