I am author of ThemeForest, and I found it's hard for me and my customers when I need to update my documents. Every time I found a thing need to be updated in my document, I must modify it offline, then packing it into my download file and submit to ThemeForest then waiting their review. With a small modification, if I use offline document, it will take time from myself, my customers and review team. Wasted a lot of time from a lot of people.

Free to Update: everytime you found a bug in your documentation, you can update it immediately without waiting any review or re-submit. Free Hosting and Domain: using Blogger means you will get the best free hosting of the world from Google. And you will receive unlimited free domain with extension .blogspot.com