Exclude Joomla registered users from EasyBlog

Hello,

I have an ecommerce site with EasyBlog installed. When purchasing a product, customers are added to the "Registered" Joomla user group at the time of check-out but they are also being added to EasyBlog as bloggers.

I have set the ACL permissions so that these registered customers cannot blog but it would be better if they weren't appearing in EasyBlog at all. Is this possible and if so, how do I configure things so new registered customers are not added as bloggers?

Also, how do I remove the customers that have already been added as bloggers? If I delete a user from EasyBlog, they are also deleted from Joomla which is not what I want. I have 100's of customers appearing in EasyBlog as bloggers and the list grows with every sale. If I disable the EasyBlog Users plugin and then delete these customers from EasyBlog, will that keep their Joomla profiles intact?

All these unwanted bloggers are very annoying so any help or advice here would be greatly appreciated.

I am using J3.0.3 with EasyBlog 3.7.14.

Many thanks...