Makes sense. I was just wondering if Satoshi was the one who suggested this convention. Some casual googling suggests it was someone else, and he never addressed this question. https://bitcoin.meta.stackexchange.com/a/22
To me, it's always been Bitcoin (protocol), bitcoin(s) (UTXO(s)), and bitcoind the peer/node.
It's probably a sysadmin/programmer thing to prefer to use the program's executable filename to refer to it.
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