This has been suggested by me and rejected by MenthiX with clear explanations here:
Some general suggestions about contact deletion activities
In old Messenger Plus! (version 3.63), contact addition and deletion activites used to be logged as well. But in Live version, they are not.
MessengerDiscovery Live has an event viewer window, but I am not sure if it displays that kind of information, and I highly doubt it has a Record Messenger Events option like in Messenger Plus! (yeah, I am not using it currently)
This is an English speaking forum, so starting your posts with English would be more meaningful
/ 
