The problem is that with no VC funding and no profit model, most decentralized systems rely on volunteers to run servers, give up storage space, spend cpu cycle

The problem is that with no VC funding and no profit model, most decentralized systems rely on volunteers to run servers, give up storage space, spend cpu cycles and/or develop it. Meanwhile Twitter could spend money like crazy for years on end because their goal was cornering the market. They can afford to operate at a loss of millions per year, whereas John Q Developer can spend a few hours a week in his free time. It's a very lopsided situation.