Since its inception it's an exceptionally good store of value over the medium to long term.
Apparently CBOE would be somewhat to very surprised.
This happens all the time even in well regulated markets. Whether it's tricky fund rules, hidden fee structures, selling bogus investment strategies, ponzi schemes, market manipulation, front running, or simply choosing a trading strategy that plays off of other trading strategies, if there is a way to separate the pigs and sheep from their money, someone will try it.
https://www.investopedia.com/articles/economics/08/wall-stre...
Thus bitcoin can no longer evolve. We all know what happens to things that do not evolve.
Ethereum on the other hand is putting a time bomb into their code that forces them to fork every year or so. There is no risk of people remaining on the old code.
https://www.bloomberg.com/news/articles/2017-12-08/inside-bi...
It's probably like a great social network totally filled with 'tag-your-friend' posts.