It is true, I have over 133 users on the test site I am building and just about everyone was confused at the point of creating a blog. Most social networks that allows blogging have the blogs installed automatically for the user. This one thing has been the biggest headache so far from the test users. For some I had to go in and create the blog for them before they could understand. If nothing else, a clearer message and not in grey, grey text on grey is to be ignored; greyed out menu items are see more to be ignored, that is universal so the same goes for such things as grey on grey text; messages; people don't see them.