Perhaps the biggest loss of cryptocurrency being branded as "crypto" is losing the Matt Blaze's thoughts on cryptography (and in turn, how this informed Stephenson's thoughts on these topics).

Anyway, in case you were curious:

Hobbs: https://web.archive.org/web/20041204055248/http://www.crypto...

Master Key: https://web.archive.org/web/20041022021127/http://www.crypto...