By way of this Chris’s post, I too liked the the following quotes from Paul Kindland:

The Web Platform is a beautiful mess. It has been expanded and evolved by hundreds (thousands?) of people over the last couple of decades. It evolved from a document platform to an extremely capable app platform. The pace at which it is progressing is steadily increasing, too. This certainly has left stretchmarks. Some APIs on the Web Platform are decades old, while others barely have a couple of months under their belt. Every API can only make use of what the web had to offer at the time of inception, which leads to the notoriously inconsistent API surface. For example, many old APIs would benefit from JavaScript’s async/await, but that feature only landed in JavaScript in the late 2010s.

– source: The Cost of Convenience | Das Surma