miniblog.

Blog comments work best when the author has a large following, and they actively engage their community. I don't think many blogs reach this scale. For a typical blog, it's probably better to have comments on link aggregators (Reddit etc) instead.

It used to be much more common for websites to allow users to modify CSS on pages that showed their content. MySpace profiles were sometimes so busy they were hard to read. This seems to have almost entirely disappeared. Reddit is the only exception I can think of today.

A reddit bot that applies machine learning to chess game pictures and extracts the game position! https://github.com/Elucidation/tensorflow_chessbot#reddit-bot Neat concept. You could extend it to analyse the position too.