Interesting. I will not be downloading and installing their software, but neither did I see a way to browse any hosted addons. I wonder if forcing users to sign up for a "free" membership to even access the addons is a violation of Blizzard's addon policy? You can download from Wowinterface and Curse/Curseforge/Wowace without signing up or being forced to use an installer client.
There appears to be interest in either going forward with a suit or at least learning more information. For those interested, please send me a PM for my contact information, and let me know if you want other authors to be aware that you are interested.
On a side note, for Curse staff: should we authors be involving you in any way, shape, or form? I am given to understand that Curse was directly affected, but I haven't heard much and consider it a rumor for now, which is why I am asking if there is an official response.
I have a follow-up, which I posted on WowInterface. I'm just posting here in case some authors don't check both sites.
I received the usual tripe about posting some code on my addons' webpages, which I will not do. Even though I am listed as former author for all of my addons, I do remain the creator for most, and in the case of LibResComm-1.0, DathRarhek passed ownership to me. No matter what the case is, I am going to talk to some lawyers, to check whether a DMCA Cease and Desist is enough (beyond me simply telling WoA to stop, which I have done) or if a suit should be lodged. Worst case scenario, I could see a class action suit forming.
I use All Rights Reserved for many of my addons. Perhaps I should explicitly define who may host, and other factors. Other than that, I spent the last 15 minutes sending Cease and Desist orders. We'll see what happens.