They have created fake profiles and send messages from fake profile when the subscription is going to end or already ended, so that the user will tempt to renew it.
Eharmony.com
VictoriaHearts.com
Zoosk.com
Match.com
Okcupid.com
MeetMe.com
ChinaLove.com
Dating.com
RussianBrides.com
ArabianDate.com
AnastasiaDate.com
AmoLatina.com