This is not really about copyright, I just couldn't find a better name.
I'm a author of two little mods and of course I like seeing them spread around and of course I'm also happy if they find a place in some UI (addon) compilations of other people. The only things which bothers me a little is that I never get informed if they land in some others compilations. If I would publish some others addon in any way I would at least give him a note about it.
It's not about the power of saying "you can use it and you not", it's about keeping track how the own work spreads around.
I don't want to blame anyone, as I said I'm happy if my addons get spread around, even if I don't know about it (but I would be even happier if I would know about it
).
What does other authors think about this?
How does other compilation-authors handle this?