I'm a simple man, I see "Accepted" and my solution is faster and more efficient than "X%" it makes my day. Maybe I am just the type of person who just enjoys coding for fun.

Also I forgot to mention, one of the reasons I started doing leetcode was our team started a new project in python. Having never written a line of code in it, being a javascript developer for most of my career, I needed the shortest path to proficiency. Solving a bunch of leetcode questions in python also helped me get a grip on the language.