As of now, I consider all of the addons that I have released on http://industrial.wowinterface.com to be public domain. Rip it apart and glue it back together, all your choice.
If there is anyone that would like to continue with one of my mods, please say so so we can arrange that at wowi. I have left WoW, because i was bored by the only thing that made me stick to it (the interface). Had a great time playing with the interface, however time has come to move on for me.
You know I tried AO again about six months ago. It is still the one game that I think had the most potential that screwed itself the most with a premature and absolutely horrendous launch.
But, I couldn't get back into it. Even the free version. I honestly don't know if I'll be able to deal with a game like any of these again without being able to modify the interface like we can with WoW.