@LegendBegins A large number of mobile users, specifically. Obviously the only platforms on which Safari exists are iOS and OS X. On OS X, the mass majority of people will use a third-party browser, leaving iOS, where most people won't care enough to get a third-party browser. Like it or not iOS will most likely be the predominant mobile platform, however I'm not convinced that the number of people using mobile on the guild is so significant that there will be much of a problem.
I don't agree. Not many people can sit on a computer all day, and the backup is mobile. And I'd say that around half of all mobile users are Apple users.
Most people I know have switched to Chrome on iOS.
I don't know anyone that's switched to Chrome. And it's more logical to use Safari, since Apple gives Safari a benefit that other browsers don't have, that makes it faster. I've found all other browser apps to be slower than Safari, and less convenient to use.