Trent Van Epps, a former Core Developer Coordinator at the Ethereum Foundation, has raised concerns about the effectiveness of the Foundation's 'subtraction' strategy. This approach, intended to gradually reduce the Foundation's influence over the Ethereum ecosystem, has not been fully realized, according to Van Epps. Despite the strategy, the Foundation still maintains substantial institutional influence, particularly in branding, credibility, funding, and its relationships with core developers and media resources.