Allows you to specify a list of buffs to track. Whenever these buffs are cast on you, it will send a whisper to the caster thanking them for the buff, and will notify you when the buff fades.
I've found that a lot of buff givers really appreciate knowing their buffs actually landed, and it helps the receiver to know when they gain and lose buffs like Innervate, Guardian Spirit, Body and Soul, etc.
Tracks buffs on a per-character basis, and whispers and duration tracking are configurable options.
Type /bt for options.