Internet TROLLS

On the Internet, a troll is a person who posts messages that create controversy or an angry response without adding content to the discussion, often intentionally, merely as a ludibrium. Though technically different from flaming, which is an unmistakable direct personal attack, trolls often resort to innuendo or misdirection in the pursuit of their objective, which is to create controversy for its own sake, discredit those with whom they disagree, or sabotage discussion by creating an intimidating atmosphere.

How do you deal with a troll?

There is some generally-accepted wisdom about dealing with Internet trolls: "Don't feed the trolls, that will only encourage them." That is, do not respond to them, that is the attention they desire. Somebody who does respond to them is likely to hear "YHBT. YHL. HAND." from other members of the group, which means "You have been trolled. You have lost. Have a nice day."