I have always opted out of the open or edited register, and have never had a problem with this.<p>Seems like your details can still be used for credit checks and fraud prevention (which I imagine covers confirming identities and addresses) even when you opt out[1].<p>[1] <a href="http:&#x2F;&#x2F;www.electoralcommission.org.uk&#x2F;faq&#x2F;voting-and-registration&#x2F;what-is-the-electoral-register" rel="nofollow">http:&#x2F;&#x2F;www.electoralcommission.org.uk&#x2F;faq&#x2F;voting-and-registr...</a>