I don't have a blog myself but am this close to creating one. Some guy said that it's a progression. You start using the web by being a casual reader. At some

I don't have a blog myself but am this close to creating one. Some guy said that it's a progression. You start using the web by being a casual reader. At some point you get more comfortable in public spaces and start replying small comments like you would reply to someone afk. Then you start reading more and more about specific subjects, amassing knowledge, and your replies have more content. They start being organized. They have a structure, to guide future readers and show them how you came up with your conclusion. They have links to sources. They leave open doors for the parts you don't know. Then you start writing more and more comments, with more and more content, as a result of your experience. Then comes a moment where you realize you're going to write the same thing for the nth time, and being a good engineer with a focus on DRY, you want to write your thoughts once and for all and link to it every time. This is the moment you start writing a blog that you actually maintain: you write not because you feel the need to write more, but because you want to write less and direct people to it rather than repeating yourself.