Intending to solve a concrete problem doesn't automatically mean a product designed under that intent in fact solves a concrete problem.
The paragraph above the phrase you quote, addressing the very principles you mention:
"Most of those principles make sense only if you don’t ever try it in the real world, where you will discover that many of them are not just of questionable value, or would be fiercely opposed by many entities, but outright illegal. (One of the systems that most embodied the principles of robust decentralized storage of files, which moved them closer to users requesting them for efficiency, was… Freenet, which immediately became notorious for child pornography.)"
Gwern elaborates at length about the principles, the concrete prototypes and the dissonance.
Did you just ctrl+f "solution in search of a problem" to criticize the analysis?
The paragraph above the phrase you quote, addressing the very principles you mention:
"Most of those principles make sense only if you don’t ever try it in the real world, where you will discover that many of them are not just of questionable value, or would be fiercely opposed by many entities, but outright illegal. (One of the systems that most embodied the principles of robust decentralized storage of files, which moved them closer to users requesting them for efficiency, was… Freenet, which immediately became notorious for child pornography.)"
Gwern elaborates at length about the principles, the concrete prototypes and the dissonance.
Did you just ctrl+f "solution in search of a problem" to criticize the analysis?