They’re likely referring to his post / thoughts on the bun rust rewrite and specifically those he shared about the lead developer of the bun project and the bun project at large.

I would not characterize what he shared as vitriolic, but from the comments when the post was submitted one would get the impression that is not a majority opinion here.

https://andrewkelley.me/post/my-thoughts-bun-rust-rewrite.ht...