I do the same as the author, and for my comments I make it clear what is non-blocking/blocking with Conventional Comments: https://conventionalcomments.org

To make it easier for myself to leave the CC tags ("nit(non-blocking): ", etc), I use the macOS text expander in System Settings and created mnemonics to easily insert them.

Example: If I type "+pnn", that maps to:

+p = pull request comment n = nit n = non-blocking

Example 2: If I type "+pc", that maps to:

+p = pull request comment c = chore

(and it's blocking because I didn't type "+pcn", the non-blocking version).