Really easy, you can get it any time you like. Go into your control panel and click Eve, then Members, then Member Management. You can click the link up top for all members, or us the search for whatever group of them you like. On the results page click All (Across All Result Pages) if there is more than one page. Then from the pull down select "View Selected As Mailing List. You can choose to honor Opt outs or not. After you submit the form you'll have all of the emails as a Comma delimited list. Right click and save the page and there you have it.
One important note: The page is a frame. make sure that when you save as you get the right frame page.
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 .