I'm pretty sure no one makes money on these mods, so I don't see anything more than attribution being necessary.
Sorry if that sounds harsh, but you should really read a little before you make such statements.
Attribution actually is all we're about when it comes to "copyrights for mods", we call it "proper credits" and it's clearly written in our site rules which any user is supposed to have read.
As far as training modders goes, you don't have to guide them by the hand, you just need to make tutorials that are open to the general public without having to join forums or modding groups to view them.
"Just". Lol
Sorry.
I've made a couple of tutorials and I know what I'm talking about.
It takes about one week to make a good beginners tutorial for IL-2 Java modding.
Another week to make a tutorial for beginners about installing the programs and utilities required.
The latter becomes obsolete every half a year.
Once you publish the "fool proof" tutorials, the next 10 fools come around and proof you wrong in thinking it'd be "fool proof". That's another two weeks just for explaining the obvious to the first 10 readers.
While you're trying to get these 10 started, the next 20 come around with virtually the same questions.
Really I know what I'm talking of.
Anything but taking
one modder at a time and guide him through it step by step will just drive you insane, that's all.
Concerning source code for IL-2 modding tools:
As explained before, many tools ship with sources.
But that's not the deal here.
We're talking about TD deliberately holding back anything that's required to mod the same parts of the game like they do.
They have "da toolz" and don't share them, period.
We're not even asking for the source code of these tools, we'd be happy already to have them at all.
See: We (modders) = Share all tools (also with TD), most of them with sources.
TD = Share nothing (no tools, no content, nothing), period.
Best regards - Mike