Why are users more scared of LLM providers getting their data than some random sketchy analytics endpoint?

Because LLMs feed on data, and the providers are training new models and need more data.

"Don't worry, you can give me your cookies and I will keep them safe" said the Cookie Monster.

Interestingly, model providers don't seem to find the querystream particularly valuable and are willing to contractually give up the right to use it.

In practice, we should all be much more nervous about analytics and data brokers.