I've been thinking a lot about centralization and decentralization over the last few days (well, decades, but this particular train of thought has been running for a few days.)
The thing about centralized platforms (for anything! social media, electricity generation, food distribution, government, business, etc.) is they can work really well.
You get a lot of benefits from centralization, a lot of deduplication of effort. Sometimes, in the case of things like power grids, centralization is so much more efficient than decentralization that considering the latter starts to feel ridiculous.
When built correctly, centralized platforms work very well.
But, they fail horribly. Really horribly, and on a scale and in ways that are only possible for centralized platforms.