Refer to my previous post about worrying about stuff out of your control.
That said, I'm surprised his blog is still up. It seems like the last thing the Navy needs is misinformation spreading through seemingly official sources. As an active duty officer, he probably shouldn't be "guessing" as to the recruiting needs of the Navy, nor when the next boards will be. He should really just stick to providing forms and documents (if anything).
It's one thing if I go into a thread and make a guess about something. You can just brush me off as some random guy. But when an active recruiter does, on a blog that looks like it could be Navy sanctioned, it's dangerous.