I actually believe that blogging (or making video, or a podcast) is good. It allows to structure our thought and synthetize them.
What I don't believe in is the OP post or many comments in hacker news on the topic: blogging in the hope to gain something beyond self-improvement.
First it's a very different best to write for gaining fame and popularity than to organize your thought. Then the market is totally overcrowded and difficult to beat, even for just a normal revenu stream. Finally: many people, maybe most, get the fun sucked out of them when they try to convert a hobby in a job.
So while I would not avocate to not blog if you want to get rich and famous, I would say it is not really a good strategy
What I don't believe in is the OP post or many comments in hacker news on the topic: blogging in the hope to gain something beyond self-improvement.
First it's a very different best to write for gaining fame and popularity than to organize your thought. Then the market is totally overcrowded and difficult to beat, even for just a normal revenu stream. Finally: many people, maybe most, get the fun sucked out of them when they try to convert a hobby in a job.
So while I would not avocate to not blog if you want to get rich and famous, I would say it is not really a good strategy