Luminox, Traser and now a few other brands, all come out of the same mold and then go to their respective companies for labeling. They are all progeny from the original Stocker and Yale mil spec version.
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 .