I can't help but feeling like if we're just going to be talking about copyright, we've jumped the shark.

Users, vendors, others,... I don't think "who is to blame" matters much in the grand scheme of things. Experimentation is inevitable and that's a good thing, it's the only way we learn:

https://www.ted.com/talks/tim_harford_trial_error_and_the...

Sure, some people involved with AI will come out richer (gold rush/shovels) while others will be poorer but that's hopefully just a "1st world problem".

I'm concerned about duplication and un-debuggable technical debt. And rising costs of energy at a time when we've reached "peak oil" and only decades away from "peak fossil/dictator fuel". But it doesn't really matter who's to blame because as long as something is more or less legal then there will always be some people doing it. There is no "People should just...". Every sentence beginning like this is very ignorant of human nature.

Taxes are a good tool in situations like this, often better than bans. For instance: make data centers pay more for electricity than households. Tariffs work too - unless you ask an LLM to write them :-D