@Spacenuts
Well, I could declare these mods as abandoned and maintain them.
In fact, I have tried to contact many mod authors over the years and have never received a response.
At least I have some permissions for bigger mods like Total Mayhem and Xtreme Wars.
In the case of copyright, we often have users "borrowing" units from other mods and building their own unit pack mod.
To prevent that i often report those mods and they get banned/hidden.
Now of course it would be very inappropriate if I would publish mods that do not belong to me and where the legal situation is at least not clear in every country. (Discontinued software)
For this reason I do not maintain mods for which I do not have explicit permission.
https://forum.faforever.com/topic/364/updated-mods-for-faf-and-vanilla-steam