No, I haven't. Yet. I am tough on the blues sometimes, but heck they are getting paid and should at least pay attention. I use my www.heckledepot.com heckles. They are great!
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 .