The issue isn't that regex are a solution to find a substring. The issue is that...

lou1306 · 2026-03-31T16:20:17 1774974017

> The issue is that you shouldn't be looking for substrings in the first place.

Why? They clearly just want to log conversations that are likely to display extreme user frustration with minimal overhead. They could do a full-blown NLP-driven sentiment analysis on every prompt but I reckon it would not be as cost-effective as this.

noosphr · 2026-03-31T20:14:00 1774988040

>Some people, when confronted with a problem, think “I know, I’ll use regular expressions.” Now they have two problems.

The only time to use a regex is when searching with a human in the loop. All other uses are better handled some other way.

>They could do a full-blown NLP-driven sentiment analysis on every prompt but I reckon it would not be as cost-effective as this.

Every conversation is sent to an llm at least a thousand times the size of gpt2 which could one shot this nearly a decade ago.

lou1306 · 2026-04-01T06:58:44 1775026724

> Every conversation is sent to an llm at least a thousand times the size of gpt2 which could one shot this nearly a decade ago.

Yes, but that is _what the product does_. What we are talking about is _telemetry_.

8cvor6j844qw_d6 · 2026-03-31T11:37:41 1774957061

Very likely vibe coded.

I've seen Claude Code went with a regex approach for a similar sentiment-related task.

mr_00ff00 · 2026-03-31T15:34:11 1774971251

My understanding of vibe coding is when someone doesn’t look at the code and just uses prompts until the app “looks and acts” correct.

I doubt you are making regex and not looking at it, even if it was AI generated.

rdiddly · 2026-03-31T14:44:33 1774968273

Clbuttic!