Maybe Cartire can help you.
In my opinion, the difference is the header image.
I took some time to write an article about Blizzcon being free three days ago, and that article never showed up in the News section so it got only about 20 views and zero ARP. Today I log in and I see that someone wrote about that same thing just about 4 hours ago and it's already in the News section! WTF? Mine was written 3 days ago!
Did I did something wrong, are there any rules I'm supposed to follow? I don't wanna waste my time preparing articles only for them to be completely ignored.