Griefing

Griefing refers to harassment of another player. In Puzzle Pirates, this includes sending abusive or threatening messages, stalking, and other forms of social abuse, but especially refers to in-game actions intended to cause pain and frustration, such as frequently-repeated PvP attacks on the same ship, nuisance blockades, etc.

Griefing is a violation of the terms of service.

= External Links =
 * Terms of Service
 * "Griefer" on Wikipedia