Listwashing
From Wikipedia, the free encyclopedia
Listwashing is the process through which individual entries in mailing lists are removed. These mailing lists typically contain e-mail addresses or phone numbers of those that have not voluntarily subscribed. An entry is removed from the list after a complaint is received.
Only complainers are removed via this process. It is widely believed that only a small fraction of those inconvenienced with unsolicited email end up sending a proper complaint.