The responses show such a wide range of numbers of posts per day on a blog. I can only think two reasons for this: either it depends on the blog (any number of variables, including unique ones), or it doesn't matter how often a blog is updated. Not committing to either conclusion, but what else could one logically conclude with so many vastly different responses?

If you aren't used to handwriting your posts, you may be overestimating how many you can do. Ironically, it's easy for me to write a lot on my webmaster forum posts, but takes forever for me to write a post for my blog. Working on it.