@297ef8d1 Re-following is performed during account migration, it is triggered by Move activity (the process is described in FEP-7628). I guess if object and target of Move activity point to the same actor, it can be interpreted as "re-follow me" signal. However, if your followers table is lost, how would you know where to send this activity? 

 @silverpill Something like FEP-8fcf in the opposite direction - if instance A sees that B "forgot" its followers collection, try to renew all A->B follows  

 @297ef8d1 Yes, this should be possible, but there's no proposal for such mechanism yet.