Why have a website? Well, there are several reasons, perhaps you could think of some more than these:
Firstly, an extended business card, augmenting my advertising for being a math tutor.
Secondly, my hope is to accumulate over time as much interesting mathematics as possible and make it extremely accessible to any high school student, and that some might be inspired to study more mathematics.
Thirdly, a repository for some of the mathematics that I have learnt and tutored over the years.