The Rust leadership team is not anonymous; you can read about them on the rust-lang.org website [1]. The much-discussed "leadership chat" was created to enable process-all-the-way RFC acceptance earlier this year [2] and has been updated twice since then [3][4]. There was also public-facing communication about this [5].
I believe GP is referring to JT (and others) choosing not to name the people who decided to downgrade JeanHeyd Meneide's talk from keynote status. Those people have since publicly named themselves in relation to the incident.
1: https://www.rust-lang.org/governance 2: https://github.com/rust-lang/team/commit/3700516795a293493e8... 3: https://github.com/rust-lang/team/commit/09717c6540c47663960... 4: https://github.com/rust-lang/team/commit/2cea9916903fffafbfa... 5: https://blog.rust-lang.org/inside-rust/2023/02/22/governance...