Jack Paul 
DeFi was supposed to be open, permissionless, and decentralized. That was the pitch. But today, many major protocols look more like enclosed systems. Liquidity sits inside vaults. Fees flow to treasuries. Tokens begin to act like equities rather than network utilities.
How the shift happened
Hyperliquid is one of the clearest examples. The protocol routes most of its trading fees into an internal Assistance Fund. It also runs the HLP vault, where liquidity providers share returns through a single position. In practice, this creates a buyback engine that keeps capital inside the network.
Aave moved in a similar direction. The protocol activated its fee switch and plans to send product revenue into the DAO treasury. With hundreds of millions in annualized revenue, Aave looks less like a peer-to-peer utility and more like a cash-flow machine. Polygon also changed course. After migrating from MATIC to POL, it turned a fixed-supply gas asset into an inflationary token tied to the core team’s fintech push.
The cost to open markets
These designs can hurt open DEXs. When liquidity stays trapped in native vaults, external exchanges get less organic volume. Users hesitate to move assets across networks because bridging costs time and money. That leaves cross-chain platforms struggling to keep their order books alive.
Supporters say the trade-off is worth it. A walled garden can offer protection, consistency, and better user experience. For new investors, these closed systems feel safer than fully open markets. They can hold a token, watch price support from buybacks, and learn the market without dealing with deeper complexity.
Who actually holds power
But the shift raises governance questions. In many DAOs, core teams and early backers still shape decisions long before regular holders vote. Fee switches were framed as community wins, but they often work as corporate revenue collectors. Retail gets buybacks. The core team keeps control over the treasury.
The debate is not one-sided. Centralizing liquidity can create healthier balance sheets and reduce speculative pressure. Some systems may continue to move toward more integrated models. Others will keep external liquidity because their value depends on openness and neutrality.
Traditional liquidity provision is not going away. But its economics are being challenged. Perhaps we are heading toward a split system, where some protocols become efficient silos and others remain open markets. Which path wins will depend on whether users still care about the original promise of DeFi.