There is no definitive answer to this question, as it depends on a variety of factors. Some writers who blog believe that it is an important part of their marketing strategy, while others feel that it is simply a way to share their work with a wider audience.
Ultimately, it is up to the individual writer to decide whether or not blogging is beneficial for their career.
One important factor to consider is whether or not your blog content is original. If all of your posts are derivative of other sources, then it may not be worth your time and effort to start a blog.
However, if you are able to write original content that is interesting and engaging, then blogging may be a good way to reach a wider audience.
Another consideration is whether or not you have the time and energy to maintain a blog. If you are already busy with other commitments, then it may be difficult to devote the time necessary to create engaging content and respond to commenters.
However, if you are able to find the time and energy to blog, then doing so may be beneficial for your career.
Ultimately, it depends on the individual writer whether or not starting a blog is beneficial for their career. If you believe that blogging can help promote your work and reach a wider audience, then starting a blog may be worth your time.