[user-extended]

1. Old people do not use it.

2. Very responsive, searching for previous messages takes seconds.

3. I remember back in '17, most other VOIP and especially video calling services sucked. Discord made gaming with your non-techie friends with a crappy laptop plug & play.

4. Lack of censorship (at the beginning).

5. Good UI when it was released compared to its competitors.

6. Gaming Centered Nature back when that was not common and/or alternatives were complicated and clunky (TeamSpeak).

7. Very good integration of GIFs, meme emojis, and the like.

8. Old people do not use it.

[Blackstrat]

A bit of ageism? Perhaps “old people” simply have better things to do than play video games and share juvenile jokes with their anonymous Discord “friends”, attempting to demonstrate their coolness. I would suggest that age or any other demographic category, whether race, gender, sexual preference, etc. constitutes a poor metric by which to judge the merits of a technology platform.

[user-extended]

I don't see too many young people on Facebook, is that ageism too? I was replying to the question why do communities move there, and I think that's one of the reasons.