i dont usually respond on forums, but i feel that i may help here. i found a link to a macro that is very helpful in this situation, or at least till we get a "right click ignore" feature.

/blist add <r>

then just pull it to a hot bar and when one of these douche bags pst u, click it. it will black list the last person to whisper u.

i hope that this helps you all....its helped me.