Never fear, Leatrix is here! This addon allows your raid members to receive an invite to your party or raid (when converted) by whispering you the simple phrase "plusinvite" (without the quotations).
How to set it up:
Install the addon, start your client. Open the options interface by typing /leaplus. Under the Automation menu, you can enable the automatic invites by choosing "Invite from whispers". It also gives you a few other options, like always accepting party invites sent to you by a friend. Explore the other menus, which give you options like auto selling, auto repair, and hiding the Gryphons from your UI.
How to use it:
Begin by inviting one member to the raid manually, so you can convert from party to raid. Once you get quick at this, you can just change it on the fly, but at first its easier to use this method.
Update your BattleTag broadcast to say : Whisper me "plusinvite" (without quotations) for invite to XYZ raid. You must whisper me just the word plusinvite.
I highly recommend you specifically use that script, after months of using Leatrix I've found it to be the most effective.
Make a macro for it that you can just copy/paste if you are lazy and don't like always typing it out.
You WILL get people who still whisper you "Inv" "Inv plox" "OMG INVITE PLS RAID" or, my favorite "i tried to whisper plusinvite but he isn't online??" Gently direct these folks back to your broadcast until they get it right, explaining what they did wrong if applicable. ("I have invite instructions in my broadcast, thank you!" usually works)
Don't be a jerk, just explain that you really prefer people to use the system you have in place.
Important: If someone is logged on multiple accounts, Leatrix will NOT work. You have to invite that person manually by selecting the character they want to bring and inviting them.
This addon is fairly lightweight and has been updated for 5.0.4, and the author keeps it updated regularly. I encourage you all to give it a try, and watch your invite process become infinitely more streamlined!
Don't forget: You HAVE to convert to a raid, or once your party hits 5 people then nobody else will be invited.
Leatrix Plus: http://www.wowinterface.com/downloads/i ... xPlus.html
Please note this addon is NOT on Curse - you will need to install this addon manually.
Here is a great video on how to manually install WoW addons: http://youtu.be/ATKfXMU6FMM