I’m curious about the “Eventually Approved Names”. Some of them were rejected 4 times or more before being accepted! I would love to know more; what’s the bar

I’m curious about the “Eventually Approved Names”. Some of them were rejected 4 times or more before being accepted! I would love to know more; what’s the bar for “overturning” a previous denial? Do you have to present new evidence or present a novel argument? Or is it just a matter of public tastes evolving over time? There are summaries posts of the recent decisions that has some hints but it doesn’t really go into much detail.