Re: No, thanks.
so does that mean that I will just have to attend a boring old style interview instead?
sadly, it might mean that "a new research conducted by the Ministry of Silly Walks" reveals, that the chances of an interview for candidates who do not have social networking presence, have dropped to, virtually (!) nil".
methinks this calls for at least two profiles, i.e. your private one, locked down against any snoop, and an open one when on one hand, people will pay for and apply (and companies will deliver) tools to "optimize" your profile. And then, the vetters will apply counter-tools to filter out the optimization. But, as you fake your open profile, they'll push to gain access to your "real one", and you might have to, perhaps informally, be told that to get that first interview, you need to let them access your "private" profile. And if you claim not to have one? Well, see above, "The latest research conducted by..."