• Because Safari takes up much fewer CPU and RAM and feels much snappier in general compared to Chrome and Firefox.
• The UI is 100% Mac'cy and doesn't try to be different in retarded ways. Fuck preferences-as-a-webpage.
• The automatic syncing between my iPhone, iPad and Mac is also amazingly convenient. I can Handoff this page over to my phone and it will retain the comment I am currently typing! Can't beat that shit.
• I don't do webdev so I don't care about the in-browser devtools, but they suffice for me when I dabble in it.
• I want to limit what Google sees about me to as little as possible.
I only use it to open non work related sites to split distractions because I agree it's not the best browser.