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Re:Technology preview: Private contact discovery for Signal by pas on Tuesday September 26, 2017 @06:23PM (#15343105)
To succinctly convey emotions, opinions, viewpoints, "feels". To simply have a non-verbal vocabulary, to have a different quality to certain parts of the communication, to signify a different quality of seriousness/playfulness/feeling.

It's the new emoticon. :-)

Re:Technology preview: Private contact discovery for Signal by skybrian on Tuesday September 26, 2017 @09:35PM (#15344204)
I'm curious, are they used anything like memes that you can easily send more than once?
Re:Technology preview: Private contact discovery for Signal by wingerlang on Wednesday September 27, 2017 @12:54AM (#15345023)
Not sure what you mean by "like memes". They are just funny images with thousands of variations that you can send. If you're going to sleep - send something cute that shows it.

Some examples http://www.line-stickers.com/

Re:Technology preview: Private contact discovery for Signal by synaesthesisx on Tuesday September 26, 2017 @10:52PM (#15344552)
The only thing I could see that would potentially top this would be talking animated emoji....The feces one comes to mind specifically
Re:Technology preview: Private contact discovery for Signal by pas on Wednesday September 27, 2017 @08:29AM (#15347071)
It it talks, it takes too much time to parse, and it becomes too specific.

Pictures, maybe with a max 0.5 sec animation are okay, and no sound. (At least that's my hunch.)

Re:Technology preview: Private contact discovery for Signal by NMDaniel on Tuesday September 26, 2017 @06:29PM (#15343153)
So basically emojis?
Re:Technology preview: Private contact discovery for Signal by mintplant on Tuesday September 26, 2017 @06:37PM (#15343218)
Sure, if emojis could be infinitely extended with arbitrary images and were sent as their own messages instead of being embedded inline with other text. Replying to another message with a sticker also fills the role played by reactions on Facebook Messenger.