[LambdaTrain]

It goes far beyond twitter culture. Even in daily conversation there are people who only open out port and close in port. One signal is that whenever you bring up a perspective (either in support/disagreement) this person gonna continue his speech and make the conversation expereince like attending a lecture.

[nicbou]

If your packets keep bouncing, you stop sending 'em. Their packets get ACKed and disregarded.

[Cthulhu_]

Tongue in cheek, I'd call that "racist uncle at thanksgiving".