> You can't find a copy of any specific work anywhere in the weights.
You won't find a copy of any specific work anywhere in the compressed form of a file, either, but when you decompress it you find the complete work. And many large AIs can recite, verbatim or near-verbatim, many complete works. Yes, they might get a word wrong, but that doesn't nullify the point that they're trained on the entire work and to a first approximation they can emit the whole work.
> Typically the consumers of the weights are software developers or content creators, whereas the consumers of the original text or image are fans.
Many of the consumers of image models are in fact generating art that they previously would have commissioned from an artist. (Some of them are also generating art they never would have commissioned from an artist, so I'm not implying that this is a one-for-one revenue loss.) Consumers of code models are, in fact, potentially reducing the total demand for novice programmers.
The model derived from a pile of artistic works is, in fact, directly competing with those artistic works.