The question is about mods downloading other mods without asking or even telling the user - not about mods bypassing other mods' adf.ly links.
If you kept reading, I got to that.
I said:As for whether it downloads it whether you want it or not, then again. Under conditions.
Understand that the user would be perfectly aware that Mod Y derives and relies on Mod X. If they want the mod then they should understand that Mod Y comes for it so they must download it. For them to complain that they are being forced to download Mod X for the sake of Mod Y.
Besides, of mod Y relies on a such a game-changing primary mod, and yet they enjoy it anyway, the primary mod mustn't be that bad in the first place.