Those tips are helpful, but also kind of off-topic for the subject discussed here. They don't change the fact that:
It makes no sense for a "Most Recent" list where entries can jump from not yet being on the list at all to being way down the list, without ever having been at the top. For a "most recent" list, the top entry should be the one that most recently appeared in the list. Anything else doesn't make sense and only points to a mis-match in the metrics used for inclusion and for sorting.