Linking your wordpress.com username to your wordpress.com blog is the best free advertising you can get.
Provided that you are signed into wordpress.com when you leave a comment on a wordpress.com blog then every other person who is also signed on to wordpress.com will be able to click your wordpress.com username (which is linked to your blog) and arrive on the front page of your blog.
The added benefit is that staff will also be able to locate the blog linked to your name with a single click if you ever need an adjustment made to your blog.
It’s very easy to do. Here’s how to link your username to another blog registered under the same username account Dashboard -> Users -> Personal Settings -> then scroll down to Primary Blog. Where it says ‘Primary Blog‘ select the URL for your primary wordpress.com blog and then save changes.
The change is not retroactive. Thereafter every time you sign into the forum we can all click on your username and your blog will be linked to it. And every time you leave a comment on a blog your username can be likewise clicked and your blog can be instantly located.
Note that there is a complete record of every post that you make to the forum on your forum profile page. Also note that when you mark a forum threads as “favorites” that you will find them listed on the forum profile page too. And everyone in the forum can access your forum profile by simply clicking on “Member” next to your username.