only once before to an extreme extent. there were actual threats in regard to my family and myself. one of the people involved even posted my address in the pre guest book and spammed the chat room making it obvious he knew where i lived. i was also getting anonymous, unsolicited phone calls one of them from the mobile phone of one of the people involved. the police paid him a visit and referred me to the computer crime squad....who advised naming and shaming is usually effective in stopping cyber bullying.
i've had several people send me vitriolic emails...usually referring to *insert any insult about weight and sexual promiscuity, endless profanities and vitriolic spittle* but i ignore them and they stop. all it does to me is convince me how better off pre is without them.
the person referred to in this thread has a different reaction to not being responded to and he, up until now, has continued to email me when requested to leave me alone.