Global Dashboard, Main Blog, Make Visible

I’ve mapped my own domain to my WordPress account, and all seem to work fine. However – in Global Dashboard, where my (only) blog is shown, it appears as “hidden”. There’s a link under my blog name that says “Make Visible”. When I clicked on it (so many times…), nothing happens, it still shows as hidden.

Like I said – everything seems to work fine and I don’t seem to have any issues, but I was wondering why would my blog appear as “hidden” (and not being able to make it visible) on my WordPress account – and what would the consequences of that be..?

Anyone else in this situation..or knowing the answer…?
Thanks!