If one wants, rather, to keep the movement of their money less overt, one simply needs to ensure that the bitcoins they own are never tied to their identities, and that their transactions on the network are obfuscated. This can be accomplished with a variety of methods, such as using a tumbler, which allows one to send bitcoins to an intermediary service that will mix these bitcoins with bitcoins from numerous other sources, and then send bitcoins forward to the intended destination from sources entirely unrelated to the sender’s original bitcoins.
Hence, no rationally self-interested bitcoin miner would ever try to mount a 51% attack, as in all likelihood, they would lose massive amounts of money doing so and gain almost nothing from the effort. The only reason someone would want to conduct a 51% attack is to attempt to destroy faith in bitcoin — large governments, for instance, who might one day feel that their fiat currencies that presently provide them great value to them are becoming threatened by bitcoin. However, the likelihood even of these enormous entities to successfully conduct a 51% attack is already becoming vanishingly small, as mining power increases.
Merchants must be wary of their customers, hassling them for more information than they would otherwise need. A certain percentage of fraud is accepted as unavoidable. These costs and payment uncertainties can be avoided in person by using physical currency, but no mechanism exists to make payments over a communications channel without a trusted party.
I think that this is a great strategy, and personally practice it with a few modifications. While I’ll never sell at any price essentially (unlike other investments, bitcoin and cryptocurrencies are unique in that they arecurrencies, and consequently if they succeed, you won’t have to sell them to gain value from them. You can just use them directly, just as you might US dollars or any other form of currency. In the manner that I use the word sell here however, I mean that I likely won’t sell at any price under $100,000, as that’s where I personally see the moonshot value of bitcoin going towards, in the slight chance that it does succeed), no matter how high the price rises in the short term, if and when the price becomes particularly low as a result of a cratering market, I will look to buy more than I normally would, to double down on my investment here — all the while keeping in mind never to invest more than I’m perfectly willing to lose entirely.
While futures products still carry unique and often significant risks, they can potentially provide a more regulated and stable environment to provide some exposure to bitcoin as a commodity as well. You should carefully consider whether trading in bitcoin futures is appropriate for you in light of your experience, objectives, financial resources, and other relevant circumstances.