[Hell Yeah!] Android O feature spotlight: Persistent notifications are more compact
(Android Police)

I hate persistent notifications. I like dropping down my notification shade and seeing nothing there, otherwise I get very OCD and feel like there`s something that requires my attention, but then I see there really isn`t because it`s just a persistent notification. Even if you don`t mind these and even if these always get pushed to the bottom of the list, they can clutter up your notification drop-down and make it more difficult to manage. Read More[Hell Yeah!] Android O feature spotlight: Persistent notifications are more compact was written by the awesome team at Android Police.