The 'original founding ideas' of wikipedia, whatever they may be, aren't relevant if they aren't actually encoded in the organizations rules. And since nobody can come up with a persuasive argument that wikipedia must accept crypto by wikipedia's own rules, this clearly isn't the case.
Without that, the 'founding ideas' are just ideas wikipedians used to have, and are far less relevant than the ideas wikipedians presently have. Their present views are evidenced by this vote, which crypto advocates are clearly upset about.