@coupable,
Thanks. I have seen the use of "bitcoiner", too. That one is fine for referring to bitcoin enthusiast. The drawback is that it is restricted to only bitcoin.
I'm looking for thoese concepts because what I'm doing is related to creating brand names. For example, if "cryptor" were fine in this case, then it could be used to create a brand name of a cryptocurrency coaching platform such as "Cryptors Academy".