[tdumitrescu]

"For me, it was seeing the back end code wizard on my team—the one that always made me feel like an impostor—spend an hour trying to center an image on a webpage." To be fair, before flexbox this was also true of front-end wizards...

[0xfeba]

Came here to say the same. Centering an image is much harder than it should be, pre-flexbox.