Ask HN: Standardized Abbreviations for Code Reviews?

I've just submitted a code review on GitHub and marked it as "Request Changes", but only 10% of my comments were important. The other 90% were suggestions and questions because I'm not sure how familiar the developer is with the ecosystem.

I vaguely remember one HN comment mentioning a set of standardized abbreviations for: "This has to be changed and I am willing to die on this hill", "I have somewhat strong feelings about this, debate me", "This is just a suggestion", etc., in the same way that "LGTM" has become useful shorthand.

Does anyone remember/know such a convention? It would be great to have a linkable resource for client work.