Facebook is hiding a few doses of notification-dopamine from you in your message inbox, as pointed out by Deadspin's Adequate Man. No, it's not the secret 'Other' folder you were outraged to find out about a few years ago. This one's even more hidden.

If you go to your messages, select 'Message Requests' on the top bar, and then click 'See filtered requests,' you may find a world of spam, harassment, or nothing at all.

A guide, if you dare to look.

People have taken to Twitter to share their unreceived messages, pretty much all of which were hidden for the better.

Sources: Adequate Man