A few years ago I wrote a post describing how I creating many of my blog posts.
When I had a new question/issue that required some research, Usually I do a Google search, open a few articles and extract what is useful from them. Usually I was not able to find exact answer, so I had to make a solution of my problem based on the ideas from different articles add my own ideas, combined the ideas from different sources, and finally describe my sollution in a blog post.
Recently I realized, that from top 10 result of Google search, pages from StackOverflow usually give me the most relevant answer to my questions- often exact, what I wanted to ask.
If I am unlucky to find satisfactory result, and my issue is not very urgent, instead of doing research by myself, I can ask a question on StackOverflow and there is a good chance, that next day someone will give me an idea, or (even better) tell that it possible duplicate of question, and refer me to appropriate thread.
If I wouldn’t have any responses from community and I would have to solve my problem by myself, I will answer my own question, and it will be seen by more people, than a post in my blog.
It’s definitely good that StackOverflow has answers for many needed issues.
Is it bad, that I will write less posts in my blog? Actually not, some of my posts will published as questions/answers is StackOverflow instead of in my blog.