a good idea to provide information to beginners who want to know about cryptocurrency especially bitcoin. but very rarely bloggers want to free their writing. usually they want to get paid as a writer service for your blog.
I also think good idea for beginner including me.
You said why he does not to get paid for his writing? Because he want to help the beginner and he was beginner too before and he knows how the feel as beginner without anybody help and no good information.
I support you to do this mate.