In addition to improved messaging filters, Facebook also announced a new feature it's testing that will allow users to pay to send money to people they're not friends with on the social network. 

From Facebook

Today we’re starting a small experiment to test the usefulness of economic signals to determine relevance. This test will give a small number of people the option to pay to have a message routed to the Inbox rather than the Other folder of a recipient that they are not connected with.

Several commentators and researchers have noted that imposing a financial cost on the sender may be the most effective way to discourage unwanted messages and facilitate delivery of messages that are relevant and useful.

Suffice to say we're with Gizmodo in hoping that this test fails and the feature gets scrapped. 

The other messaging features announced today include a new Basic filter that will show you messages from people you're friends with and people to whom you're tangentially connected. The Strict filter will make it so you only get messages from people you're friends with. The way it should be. 

[Facebook via Gizmodo]