Hi @biophil, hope this helps:
The "wash sale" rule applies to stock or securities by design of the Code Section (not just any item of property). Also, there are a certain rules that would apply only to cryptocurrencies that are deemed "securities" for purposes of the Internal Revenue Code. This could all change in the future when more guidance is issued, however I highlighted a few of these nuances in an old article: https://steemit.com/bitcoin/@cryptotax/tax-implications-of-trading-ico-tokens-impacts-to-2017-tax-season
I see, thanks. I'll take a look at the other article!