Link to an interesting article about the history of blogging.
https://www.webdesignerdepot.com/2011/03/a-brief-history-of-blogging/
Suffice it is to say that blogging means many things to many people. Some people are experts and their blog is so informative other people use it as a ready reference. Some people love to blog about their passion ... gardening, movies, etc. Some people have blogs on all kinds of randomness.
If a person does not say they are experts and show some credentials touting themselves as experts, I just assume they're not experts. I don't take their words as gospel truth. But I don't ignore them either. I cross-check.






