That's fine when there is a clear seniority difference, or when there is an obviously clearer way to write the code. I've usually worked on teams where most people are on a similar level and coding decisions are all about trade-offs / personal preferences. Bringing those types of things into a code review can be a great way to kill the team's dev speed for no obvious benefit
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
That's fine when there is a clear seniority difference, or when there is an obviously clearer way to write the code. I've usually worked on teams where most people are on a similar level and coding decisions are all about trade-offs / personal preferences. Bringing those types of things into a code review can be a great way to kill the team's dev speed for no obvious benefit