I decided to drop my old hobby phone and email account due to a security concern. I contacted folks on those accounts and informed them of the switch. I then contacted them on the new accounts. It was smooth and no one has required rescreening.

My new phone numbers for hobby purposes are in place with all who need them. I haven't moved ALL the addresses over from the old email yet. I did most established and most frequently friends first. (So if you haven't heard from me yet it doesn't mean you won't.)

One thing I did differently this time was I compartmentalized accounts. I now have several cell numbers and emails, stratified by type of contact and level of trust. I don't want to inconvenience _everyone_ in the future should I need to make a similar change in the future.