An “error” could be like it did a grammar wrong or used the wrong definition when interpreting, or something like an unsanitized input injection. When we’re talking about an LLM trying to convince the user of completely fabricated information, “hallucination” conveys that idea much more precisely, and IMO differentiating the phenomenon from a regular mis-coded software bug is significant.

Not seeing the relevance of need at all? It seems like a legit answer to the question, at least inasmuch as any specific content or documents can be, as opposed to forbidden knowledge/ideas like crypto key numbers or (in the past) the concept of a gun-type fission bomb.

Is there actually something behind all these comments about his appearance, or is it just typical internet name-calling that mostly falls into the same anti-LGBTQ+ bucket?

“Till” is completely valid synonym of until. “'Til” is an informal contraction (and was probably meant to be the actual word “till”). If you’re gonna be aggressively prescriptive, at least pick an actual battlefield instead of attacking innocent folks.