My take as someone who mostly does it "for fun": I only started blogging as a way to have writings online outside of social platforms.

>What made it worth it for you?

If by "worth it" you mean a measurable ROI, then nothing. If we expand it to more abstract concepts, then spinning up my own HUGO theme and writing about what I like is fun, so self actualization is what I get from it.

>What kinds of posts actually worked (for learning, career, network, opportunities)?

None, probably less than 100 people have read it, I only share it in friend groups, but it feels nice when those friends read it and give me feedback.

>Any practical format that lowers the bar (length, cadence, themes)?

What do you mean by "lowers the bar"? The length of my posts can be pretty variable, cadence is "whenever" and the blog can go months without an update, and themes are also pretty varied, sometimes I talk about some piece of fiction I like, other times it gets more technical, and sometimes too I just recount the process of making something and the insights it gave me.

>If you were starting today, what would you do differently?

There's not much to change when blogging has not changed my life in any significant regard, I'm just glad I started.