Honestly, I am most afraid of perception problems.
People cling to fiat and banks because they have Stockholm syndrome. Anarcho capitalists are most likely already on board or at least seriously considering it. The regular sheep view the whole BTC with doubt and fear. The word is getting out there slowly, but, and this leads to my second point... Big Business, and Big Government... they will not relinquish control. Ever. No Way! They are watching, and my guess is,
plotting as well.
What do you do in an experiment?
You OBSERVE. Take note of what works, and why. Take note of what isn't working, and why. Try experiment again with alterations in the variables to see if you can not control these outcomes.
I'm am pretty sure that there are huge teams of developers at work, covertly, to create and introduce a competitor that exploit all the weaknesses of BTC, and simply reproduce the parts that regular noobz seem to be attracted to.
My paranoid fantasy? IDK!
They might be able to start a cryptocurrency that has less volatility. I certainly approach with a little trepidation towards the idea of spending a dollar if by evening that dollar has doubled in value. I shop for bargains, dude, not gouges!
Users could very well choose a centralized and standardized "lookalike" if it is marketed properly. Say PayPal makes a PPpenny- they mint 51% all right away and then open up mining to the miners with the same difficulty/rewards type situation as a newly birthed crypto$. They allow early adopters to see good rewards but retain majority ownership of this economy. Then PP is basically who is backing this and it is a "backed" currency. They continue to refuse to accept BTC as well as lobby govt to make unbacked currency restricted beyond usefulness. Meanwhile, their considerable PR dept is touting the safety and "trust" offered by their PPpennies all the while magnifying the drawbacks of BTC. They will play on public misconceptions to do this if necessary. We are competing with them and they hate us and will be both secretive and ruthless.
Really, I wish people were more committed to anarcho capitalism, but the disappointed idealist within me isnt into holding his breath on this one.