>What I expect is for people to act professionally and courteously, not launch personal attacks, no matter the medium. Yes, I eventually did block email. Twit filter, IMO, is useless as it only blocks messages from a person, not to them, nor does it filter out their quotes in other people's posts, so you end up getting their stuff anyway. To make the twit filter useful, it would need to block any thread the person has posted on.
Still serves a purpose... first, I get the text through an intermediary, with the benefit of someone else already returning the ball. Second, it's a reminder to self to not talk to these people, period.
And the mouse finger gains speed and precision. You wouldn't believe how fast it finds the next message to read.