I think the way other very similar sites have gained popularity is through widgets that other websites can embed - I've never been to CodePen to create something, yet I've used it dozens of times.
I think lack of AI is probably a major issue in two ways: firstly many AI can do exactly what you do with the boilerplate setup, and secondly many people want AI to help them with finicky stuff like coding animations.
I think lack of AI is probably a major issue in two ways: firstly many AI can do exactly what you do with the boilerplate setup, and secondly many people want AI to help them with finicky stuff like coding animations.