Daring Fireball is an outlier and a holdover from another era.

For every Daring Fireball, there are 100 blogs neither you nor I have probably heard of that are profitable businesses.

That's not true at all. He writes several posts a day.

https://daringfireball.net/

That's no true at all. Where did you get that?

He averages about 5 posts a month, and has months where he writes 1 post:

https://daringfireball.net/archive/

Click the RSS feed or the homepage. The archive is only to essays. The more frequent link summaries keep his audience engaged between essays.