Similar concerns - when it comes to email, I have multiple ones on gmail + on dot mac. Use one as my "real email" and others circulate on the interwebs. Works well - result is same as having as having a personal and confidential phone number to the few that it makes sense to give access to. If you look at the email I left on reply, you will understand my strategy (assuming that your Belgian heritage yielded some basic understanding of French - which I suspect it likely did). Result on my "real" email" I get no spam or unsolicited email. I suspect that many high profile people (and I am not of that group) have a confidential email that only a few people have. As to the Twitter issue, I agree that it is a nuisance - I have blocked/unfollowed people and continue to get their tweets notwithstanding - meh -