Hi HB Stratos, you didn't offend me, but I think a compromise would be a better solution to this issue.
As a DLC user, I don't usually use mods, and when I turn the stock filter off, I only end up seeing crafts with mods that I don't want. I agree that DLC isn't stock, but I don't think it qualifies as a mod either. Something else that may help is that stock crafts have "stock" in front of the thumbnail, but DLC crafts have "stock+" in front.
Another request for Katateochi, could you please make KerbalX compatible with the Steam workshop (I mean in-game, not on the actual website)?
Thanks,
Salmon.