Even if your technical architecture supports scale and federation, these are just some threats off the top of my head:
- spam, fraud and Sybil attacks, deteriorating the experience for everyone
- infighting, forking among maintainers of core libs and protocols
- maintainers get poached by mega corps
- hostile takeovers of foundations, trademarks and auxiliary institutions
- a single entity within federation gets too large and imposes their own changes that can’t be rejected without losing majority of users or forking (see infighting)
- VC/deep-pocket subsidized competition offering free service (say eg video calls) and unlimited marketing, OEM pre-installs etc, to poach critical mass of users
I love the idea of federated systems. But I think some of us nerds think too much about tech and too little about the social and economic dynamics of the real world.
Why hypothetical? Matrix already works sufficiently well.