Yes that includes "bitcoin"
The 54-year-old computer scientist slammed the newfangled asset class as a "great vehicle for scams." He also went on to mention that cryptocurrencies function as a typical Ponzi scheme that aims to find "the next sucker holding the bag."
To believe or not in crypto / bitcoin is Torvalds’s personal matter and right, and absolutely not a reason for his hatred. Bitcoin doesn't become a Ponzi scheme (although technically, there are similarities due to the fact that early investors profit at the expense of late investors. The stock market is no different in this regard) just because Torvalds voiced his opinion about bitcoin publicly.
Did anyone else notice the information in the article about how Torvalds trolled everyone with this phrase? Good joke, isn't it?

I know that many bitcoin enthusiasts are big Linux advocates. In order to stay consistent maybe they need to switch operating systems. That's what I would do
I have never heard anything more stupid (no offense).
If Torvalds doesn't share your point of view, this is not yet a reason to become a Linux-hater just because of disagreements about cryptocurrencies.
Any tool (Linux OS) must be used as long as it satisfies your needs (allows you to solve your problems) and doesn't cause any harm (for example, financial or data security-related).