Currently not able to deliver updates or new features. Maybe check out https://www.curseforge.com/wow/addons/spy-classic which looks more mature and well developed (Check out Kill On Sight feature)
Put unfair gankers that killed you while you were fighting a mob on a list. When you see them again later, the addon will play a loud sound and prints a message to the chat.
You can add/remove players via context menu (Right-Click on the enemy) or use commands:
Either use /rev, /revenge or /gank and then the following commands:
/gank - Prints all available commands
/gank {Name of the Player} - Puts the name on the ganklist
/gank {Name of the Player} {Reason} - Puts the name on the ganklist with the specified reason
/gank target - Puts the name of the current target to the ganklist
/gank remove {Name of the Player} - Removes the player from the list
/gank list - Prints all names on the list to the chat, Only visible to the player
/gank export - Creates a export frame with all names including reasons. Copy and Paste content to share lists
/gank import - Creates a import frame. Paste a list exported from another user
/gank reset - Clears the list