Solana is promoting a new decentralized policy: for every new validator added, three nodes that rely on foundation support will be removed. Seemingly reform, but actually crisis? On April 23rd, the @ solana Foundation announced a reform of its delegation mechanism: validators who have been operating on the main network for 18 months and have pledged less than 1000 SOLs externally will be prioritized for removal, in order to reduce the network's dependence on the foundation's delegation and enhance the independence of validators. According to data, currently about 62% of Solana validators accept foundation pledges, with as many as 51% struggling to meet reform requirements or facing eviction. The foundation once supported small and medium-sized nodes through pledge matching, cost subsidies, and other means, but as the support gradually withdrew, the survival threshold rapidly increased. According to community estimates, maintaining node operation requires at least 3500 SOLs and an annual cost of up to $45000. Small nodes that lose their commission may be forced to withdraw. Although this policy aims to decentralize, it may actually lead to further concentration of network structure towards a few large nodes. In the context of increasingly strict regulation, Solana's move is also interpreted as paving the way for SOL ETF and responding to the core questioning of "lack of decentralization". After the new chairman of the SEC took office, 72 cryptocurrency ETFs were queued for approval, with SOL being seen as a potential breakthrough target. On the other hand, institutions are aggressively entering the market, with SOL Strategies receiving a $500 million funding plan for self operated nodes, and DeFi Development Corp announcing long-term staking of over 310000 SOLs. From the controversy surrounding SIMD-0228 to the current "one in, three out" policy, Solana is accelerating the superficial reform of "decentralization", but in essence, it has created higher barriers for small and medium-sized nodes. The real question may not be 'how to quantify decentralization', but whether Solana is willing to create living space for more nodes.