Splintering of the Internet (General)
Now, this decentralized model doesn't necessarily solve the major problem with the Internet with regards to sharing information, discussing issues, and coming to conclusions based on sound evidence and logic.
And that major problem is that the Internet allows us to live in idea mirrors, echo chambers, or whatever the term is. Decentralization actually will make that problem worse by making it easier for people to hide in their own idea caves.
In effect, decentralization will allow us all to retreat to our own thought neighborhoods that we existed in before the Internet! So this is a real conundrum.
On the one hand, decentralization allows more freedom. On the other, we use that freedom to avoid new ideas and surround ourselves with the comfort of familiarity.