Great post, Henry — I like how you included some essential concepts from Hooked to illustrate WeChat’s implementation.

One of my favorite characteristics of WeChat, which you touched upon, is how much control I have over what I see, and the lack of ‘ad-like’ behavior (sending you notifications, showing up among your messages, etc). However, recently I’ve seen an ad or two (though pretty rare) on my feed. Do you think WeChat might start running more ads?