What's happening is that AI has become an identity-sorting mechanism faster than any technology in recent memory. Faster than social media, faster than smartphones. Within about two years, "what do you think about AI" became a tribal marker on par with political affiliation. And like political affiliation, the actual object-level question ("is this tool useful for this task") got completely swallowed by the identity question ("what kind of person uses/rejects this").
The blog author isn't really angry about the comment. He's angry because someone accidentally miscategorized him tribally. "Did you use AI?" heard through his filter means "you're one of them." Same reason vegans get mad when you assume they eat meat, or whatever. It's an identity boundary violation, not a practical dispute.
These comments aren't discussing the post. They're each doing a little ritual display of their own position in the sorting. "I miss real conversation" = I'm on the human side. The political rant = I'm on the progress side. The energy calculation = I'm on the rational-empiricist side.
The thing that's actually weird, the thing worth asking "what the fuck" about: this sorting happened before the technology matured enough for anyone to have a grounded opinion about its long-term effects. People picked teams based on vibes and aesthetics, and now they're backfilling justifications. Which means the discourse is almost completely decoupled from what the technology actually does or will do.