No, as of right now user made gobos images etc, are only copied to the local drive, they are not embedded into the profile. you will need to copy them over to any new machine going forward.
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 .