To follow onto this: If what Perplexity is doing is illegal, is it illegal to run an open-source LLM on your own machine, and have it do the same thing? If so,

To follow onto this: If what Perplexity is doing is illegal, is it illegal to run an open-source LLM on your own machine, and have it do the same thing? If so, how are ad blockers or Reader Modes or screen readers legal? And if it's legal to run an open-source LLM on your own machine, is it legal to run an open-source LLM on a rented server (e.g. because you need more GPUs)? And if that's legal, why is it illegal to run a closed-source LLM on servers? Could Perplexity simply release the model weights and keep doing what they're doing?