The irony of this show: Terrible Marketing
The irony of the show is that it's all about branding and media and marketing.
And yet the marketing of the show was absolutely terrible.
They tried to sell people on a gimmick on the assumption of "No such thing as bad publicity" in the hopes that people would start talking about it. They gave the show a title that everyone hated, and portrayed the main character as extremely unlikable.
Not surprisingly, most people didn't tune in for the pilot. And by the time the show finally started getting buzz worthy and critics were starting to warm up to it (Episode 5), ABC decided to cancel it.
https://www.youtube.com/watch?v=Nk3g2Bynxqs
That's probably the best ad for Selfie. No hashtags or gimmicks. Just a standard comedy with heart. If the entire ad campaign was like that, the show probably would have done a lot better.