These sites are easy to figure out. Go to Main Page Scroll down to go to the "Code of Conduct" Search on "Reverse" Read "Our community prioritises marginalised people’s safety over privileged people’s comfort. Moderators reserve the right not to act on complaints regarding: ‘Reverse’ -isms, including ‘reverse racism,’ ‘reverse sexism,’ and ‘cisphobia.’ or critiques of racist, sexist, cissexist, or otherwise oppressiv…
For example discrimination based on race is racism, objectively. Creating a reverse-ism out of that subjectively singles out a particular identity to champion. An effective code of conduct would not mention such subjectivity in any form.