Spam

To spam is to rapidly and unconditionally repeat an action. Spam (or spamming) is usually used in one of two contexts in Guild Wars:

Skill spamming is the repeated use of certain skills for a period of time to increase damage or other effects. Players may sometimes use Echo, Arcane Echo, duplicate skills, and/or related methods to effectively lower the skills' recharge time.

Chat spamming is the very rapid sending of messages, whether to repeat the same message or send different ones. Spamming can easily fill a player's chat window, perhaps causing them to miss other messages, and many players frown upon it.
- Chat spamming is against the Guild Wars User Agreement. Players reported for chat spamming may be temporarily banned at ArenaNet's discretion. The content of the repeated message(s) is not a factor in determining whether or not something is spam.

For some debate and discussion on chat spamming, see the talk page.