Depending upon which ancient scholar you read, there may have been two Erises, one more of a trouble-maker than the other. Eris was generally not portrayed in a very positive light.
Ironically, in the 20th and 21st century, Eris is the Greek goddess who's been most honored (to the Romans she is Discordia). The religion of Discordianism began in the late 1950s and is featured in a number of Wikipedia articles. And in the 21st century, the 10 planet of our Solar System, now called a dwarf planet, was named Eris.
For more about Discordianism, see the Discordian Wiki. I'm an admin there, and plan to add links there to this site.