Best way to create User upon Registration with ES who CAN publish blog posts automatically without Joomla registration bug effecting us?

Ok. Sorry for the long title! I read the blog post about the automatic postings from Joomla Registration and Easy Blog registration allowing people to auto post. I have actually not seen this on my site and am wondering if my site is safe because we are using EasySocial for the registration?

If not then I would like to figure out the easiest way to make all my EasySocial registrations initially become part of a new group I would call which would be a Free Membership. I would want to make sure it has the permissions that my Registered Users currently have so was hoping there might be a way to duplicate the permissions but have not found that.

Then, I would like to move all my current Registered users into the new Free Membership group. I would want to allow the Free Membership group for now to publish blog posts.

Is this something I even need to worry about since I am using EasySocial for the registration of this site and so hopefully the Joomla Registration is not actually involved?

Thank you, Sean Carney