Although I should really shut up now, having gone on and on and on too much already, I can't resist questioning your proposal above.
When a person creates a Trainz asset he is relying on an enormous number of precedents in doing so - design-elements from the real world (a loco, a building), CAD software, the web and even Trainz itself. Must he acknowledge the probably hundreds of people who have, in one way or anther, contributed to his ability to make, disseminate and express that asset in its software substrate (Trainz)? This would surely be impractical; and unnecessary.
Another more obvious analogy would be when someone makes and posts a route. Should they list every author of every asset it contains, as well as all the N3V and Auran staff who contributed to the making of the substrate (Trainz) in which it runs?
If your "must acknowledge the authors of the seeds of my evolved design" rule were applied vigorously, every license would be megabytes long and take aeons to complete, as we go digging about in the history of the design for every contributor to it since Og emerged from his cave!
And what if a creator refuses this permission to evolve the designed-thing they have annexed to themselves from this long history of contributors? Must that designed-thing then stop evolving and eventually die, as other designs that were allowed to evolve thrive? Wither the creator's fame then?
Lataxe
Yeah, I think you should have "really shut up now." As you are being quite ridiculous in the statements you are coming out with, would a bit of respect and common courtesy be too much for you to handle? as that is all the Author is normally asking for.