So, few minutes ago i was playing a mod and got annoyed at one thing and my suggestion is this. To make OpenSource of developer's mod.
Basically when mod maker makes some mod and then he can export it to opensource "example.rtbm" or export it as playable mod.
So tell me what do you think about that ?

All the mods technically are open, you can make new ones using existing ones all you like. Finished mods are exactly the same files & format as the ones you'd make yourself.

A good example being aikido big (gay) dojo which was made by the community, but based on the official aikido mod.

Just make sure you credit whoever made the original where possible, people can get pissy otherwise.