In my experience, the same string can result in different moderation based on unknown factors. For example, I used to report the trans slur of the "t" word and Facebook would remove the content. Now, when I report it, the comment stays posted. Maybe it has something to do with the age of the post or the number of positive reactions to it. Maybe I reported too much and the false positives resulted in my account being banned from reporting comments. Similar behaviors on other platforms.