If the blogger just wants to write a blog and doesn't care about anything else, they can just use threads, or keep on using twitter, for that matter. But for some reason, this hypothetical blogger has decided that they don't want to use Twitter. They don't have to write their own static site generator, but in moving off Twitter, they're going to be exposed to some of the details behind the scene. If they're not an anti-intellectual, this hypothetical blogger can do some light reading to get up to speed.