Premature decentralization diffuses motive force.
Decentralization on its own doesn't produce momentum... in fact, it can prevent momentum from ever showing up since it's a diffusing kind of energy.
If you want to change something to pivot/adapt to how real people are using it, you have to convince a committee, instead of being able to just make the change and seeing how users react.
Decentralization enables ubiquity (everyone is willing to participate since no one actor could control or extract), but it also saps adaptability when finding PMF.
The best pattern: do something in the open but not decentralized (tell other people but don't explicitly try to get them to coordinate), find PMF, and then welcome other people who choose to coordinate once it already has momentum.