People use the word "crypto" as a short way of saying cryptocurrency, it is a long word.

I am saying "Bitcoin not crypto" is OK - it is an opinion of what you want to focus on ("air not gas (in general)", "medicinal plants, not plants (in general)", "gold, not all metals"). Saying "Bitcoin is not crypto" is just wrong. There's a distinction and I have literally heard people saying the latter and meaning it at the same time!

Also see:
nostr:nevent1qywhwumn8ghj7mn0wd68ytnr09cxsetjwp6ku6eww3hkgcte9uqsuamnwvaz7tmwdaejumr0dshsz8thwden5te0dehhxarj9e3xjarrda5kuetj9eek7cmfv9kz7qgmwaehxw309ahx7um5wghx7unpdenk2urfd3kzuer9wchszxnhwden5te0dehhxarj9ecxcetzvd5xz6tw9ehhyee0qyd8wumn8ghj7mn0wd68ytn6v43x2er9v5hxxmr0w4jz7qgnwaehxw309ahkvenrdpskjm3wwp6kytcpzdmhxue69uhhqatjwpkx2urpvuhx2ue0qyd8wumn8ghj7urewfsk66ty9enxjct5dfskvtnrdakj7qgcwaehxw309aex2mrp0yhxxatjwfjkuapwveukjtcqypmay88z2e6d8umvlk29nc0rj03evgwrqudsmyhdww7ppwdjqt4lykmmnwh