'Snitch-tagging' destroys any subtlety that was left on Twitter

First came Twitter.

Then came Twitter fights.

Then came Twitter passive aggression: Insults that don't explicitly identify the person being criticized are so pervasive they have a name, the subtweet.

Now that subtlety is being punctured by a rising Twitter behavior - snitch-tagging.

A snitch-tagger is essentially a Twitter tattletale. He or she sees a tweet criticizing another user and chimes in with that person's Twitter handle - flagging the insult for the target to see.

Tweeting directly at someone is like ringing that person's doorbell and saying what you think of them, said Mark Marino, an associate professor of writing and the director of the Humanities and Critical Code Studies