WildList allow you to add a note to a player and it will be said in party chat when you team with them. Because the ignore list is limited to 50 and that the /lfd will only use the real ignore list, I could not just put every frozen orb ninja-looter or bad player on my list. So I thought that adding some info about them in case I get them in my team again would be helpful. This is also nice to set note about how badass and awesome some tank/healer were.
Simply type "/wl <Player Name> <Note>".
You can also type "%t" in place of player name to add a note to your current target.
To remove a note, simply type "/wl <Player Name>"
Note: It is not possible to add players if their server has a space in its name. I also discovered that is impossible to ignore them :O