Maybe Facebook is copying Steemit . . Bringing Down-vote button.

Facebook launched experimental down-vote button
This is similar to a users called Dyzylike Button, but not the default button.
Till now only five percent of the United States Android users get this facility.
This button is only visible in the user's comments section.
On Thursday, Facebook launched the popular communication media, the down-votes button. Through this, they can see the down-vote button in comments on public posts and use the button in incompatible comments.

The downward button looks like next to the user's comment and next to the reply button. Some Facebook users express their experiences about this in their Twitter account. Users are informed that when they click on the button, they are shown some of the reporting options, such as offensive, misleading or off topic. The button first noticed an employee of Daily Beast, name Tail Lorenz.

On Thursday, it confirmed on Facebook that it is conducting experiments on the comment section of a small section of English-speaking Android users.

The Facebook spokesman said in a statement:

"We are not checking the diffile button. We are conducting a test about comments on public pages. This is only going on in some people limited to the United States. "

After adding the Like button to Facebook in 2009, the users were added to a demand by the digalike button. Although the Button button did not show the user's comment or post's preferences, there was no button to publish the dislike. Later in 2016, Facebook launched the Reaction button, so that some responses to Emoji post or comment can be expressed in post or comment.

Facebook also said, the down-votes button is not like the Like or Reaction Button. The commenter will not be able to know whether or not to get a down-votes on his comments, or how many down-votes he got, rather it can be found in Facebook. Its purpose is to identify user comments as offensive, inappropriate or confusing.

Facebook's Design Chief Julie Zhuo said in 2015 that he has heard that users complain about just one choice. CEO Mark Zuckerberg said in 2015 that they are working on the 'down-vote' button. In Juli 2015, Future's Real Fortune Fair said, "It's notable that what we heard is that they are repeatedly asking for the 'digliech' button from us. Because everything is not worth giving. "

In fact, Facebook said that it is not thinking of expanding this feature further.