I am worried about them as a substitute for search engines.
My reasoning is that classic google web-scraping and SEO, as shitty as it may be, is 'open-source' (or at least, 'open-citation') in nature - you can 'inspect the sh*t it's built from'.
Whereas LLMs, to me seem like a chinese - or western - totalitarian political system wet dream - 'we can set up an inscrutable source of "truth" for the people to use, with the _truths_ we intend them to receive'.
We already saw how weird and unsane this was, when they were configured to be woke under the previous regime. Imagine it being configured for 'the other post-truth' is a nightmare.