That’s a special choice. Might want to hit up Garagiste (where I’ve gotten all of my magmas in the past) to see if they can help. Not sure whether they can do anything outside their regular offers. But might know a source.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .