WTB

This is an common abbreviation for "Want To Buy". It is often followed by whatever the buyer is seeking to purchase, as in "WTB 5 Charr Hides".

Because some traders often spam trade messages in the regular chat channel, ArenaNet implemented a chat filter which automatically redirects any message beginning with "WTB" into the trade channel, regardless of which channel the player types it into.

See Also: WTS, WTT and Game updates/20060523 (including examples of how the spam filter works)