It's called adaptive. It changes based on whether they are on a phone/tablet or whether they are on a desktop. So when a consumer lands on a blog post, they see a clean version that is adapted from the desktop version.

However, once you log in (as a member would) I will absolutely concede that the experience on mobile is less than ideal. In fact, I always tell it to go back to desktop version by scrolling down to the very bottom of the page and clicking the link that says to revert to desktop version. 

Yes, I think that it does

Yes and you can get a preview when posting a blog of what if will look like in both places.

NOT responsive, you have to go the mobile version, which it sometimes recognizes, however, it is hard to read or respond to.  I end up changing it to desk top on my tablet.  A

No.  Definitely not.

Yes, Karen, it should.

When I log on on a mobile device the format is changed. I can also switch back to desktop view.

Karen - It looks like you got a great answer straight from the main man Bob Stewart. It can't get any better than that.

I must be in the minority because it is definitely responsive for me. Depending on if I am on my iPhone, my iPad, or my Mac it works exactly as it should.

Yes, it does.

I think if you end up on the mobile version you have a 1.0 mobile friendly site. Compared to what other sites on the internet are doing it is not very responsive in my opinion.

Bob Stewart has provided the official answer to your question.

It appears that you have received good answers even if they are not what you would prefer to read.