I used to wonder why I see so many more bugs than most people. I easily observe hundreds to thousands of bugs per week, but most people I talk to don't see anything like this. For a long time, I thought this had something to do with how I use computers but, over time, I've realized that it's mostly that people are hitting the same bugs and don't notice. If you're not a programmer, that's probably a better way to see the world, but I think curing quality/bug blindness is helpful for programmers. I've done this with a lot of friends and acquaintances by just pointing out bugs. After a few weeks of this, people who are so inclined tend to start noticing bugs as well (the fact that this has happened so many times is what makes me think that my running into so many bugs is more about my noticing them than about how I interact with computers). Because I notice these kinds of things, I've had multiple jobs where directors/VPs/execs/etc. sometimes ask me to evaluate something because I'm relatively likely to notice issues (and fix them or drive fixes for them if necessary). Sometimes I won't find any issues (there are likely issues that just aren't the kind I notice). More often, I find issues that fall somewhere from "mild" to "moderate". And, sometimes, the issues are severe, to the point where an uncharitable person might even say the thing doesn't actually work. I find this last category a bit mysterious, as when I look up discussions on how the thing got into this state, there's usually a stream of internal comments indicating that the thing is great, it works well, etc., but when I open up the thing and try it, it's in a state where the thing only works if you do quite a few non-intuitive bug workarounds. I've had this post in mind for maybe a decade or so, but I was hesitant to write it up because, in the back of my mind, I always wondered if I'm somehow triggering weird corner case behavior most users don't hit without realizing it. But after seeing more and more cases where the product launches and falls flat on its face because users run into the exact same issues I saw I don't think that, in general, I'm hitting bugs because I'm doing unusual things a normal user wouldn't do. If a product seems severely flawed when I use it, it probably is. And with the magic of LLMs, nowadays, I can even have LLMs act like normal users in a lot of ways and show that the issues reproduce across many different scenarios.