Mainly? If your computer is the net negative you claim, why are you using it?
Rather than inventing a strawman to nitpick its word-choice and priorities [0], how about you engage with the substance instead? Here, I'll help:
"It is likely that personal 'AI'/LLM systems will end up arranged to favor other humans over their supposed owners/users." — Agree or disagree?
We've already seen that misalignment happen with consumer OSes, web-browser and ads, telemetry in cars, and a raft of copyright/DMCA stuff, all of which you've probably seen on HN before.
What makes you believe personal "AI" will escape the same influences?
> just like I think it’s completely ridiculous in the extreme to suggest that personal computers [...] represent a net negative
Usually when someone says a phrase like "your computer is mostly for spying on you" or "inkjet printers are demonic tools to harvest human suffering", most readers will understand those statements to be hyperbole, a rehtorical exaggeration to make a point... Not something literal to become angry about.
also, pretty funny that you think I'm angry about some rando's hysteria on HN lol