When someone first enters the currency markets everything can seem overwhelming. There are dozens of currency pairs to choose from: EUR/USD, GBP/USD, USD/CHF, USD/JPY, etc. How would a beginner know which one to pick? How would they know which one is best, or easiest, or most difficult, for them to trade?
Beginners are also often overwhelmed by the number of indicators and other devices used for making trade decisions. A simple search on the internet reveals literally hundreds of different indicators claiming to be the best, and other people claiming that no indicators are the best. And don't forget all the other factors that come into play, including economic environments, support and resistance levels, etc. It's enough to make a beginner go crazy!
Forex blogs can help provide some perspective by people who have more experience in the markets. A sort of helping hand, so to speak. Even if the reader doesn't agree with everything in the blog, it may at least provide some direction or a place to start, which in itself can be comforting.
With all the confusion and differing opinions out there, it can be helpful to find a blog that you enjoy reading, and whose authors you trust. Indeed, trading is something that is conceptually simple but can be very difficult in application, so many people value all the input and advice they can get.