I am starting to think that it’s more to do with how people type, rather then a keyboard quality. Most people who get them break - go through 3-4 keyboards in a year. I am still using my 2017 butterfly and have not had a single issue with a keyboard. So it’s either 0 or 3+ replacements
I think it might be more about how much contact your keyboard has to particulates. The primary mode of failure has to do with dust/crumbs/etc getting into the mechanism. It's not impossible to imagine that people who type in more particulate-rich environments have frequent keyboard issues.
But that's still victim blaming. There are plenty of keyboard designs which are not this fragile, and you shouldn't have to dust-proof your workspace to avoid hardware failures. We're not making CPUs here.
One thing I found is that the reliability issues are usually quite fleeting. I have the feeling that a lot of the people who are experiencing issues are going to the Apple store straight away to get it fixed. I've had a few issues: 5 key stopped working properly, space stopped working properly a couple times, same for f key, where by properly I meant it needed more effort to get the keypress out, however every time the issue resolved itself in 2 or 3 days of use (presumably by the typing breaking up whatever dust had gotten itself under there)
They are definitely unreliable and shouldn't break so easy, but every issue I've had has resolved itself
As one anecdotal point: I waited months for mine to go away, and eventually got really frustrated with it and brought it to the store. They took it to the back and somehow their air can removed what my air can at home could not.
About a year since I did that and the key funkiness is slowly coming back for the last two weeks. Hopefully I only need another Apple Store trip and their compressed air to fix it.
The point is that a keyboard shouldn't have those kind of problems. If it fixes by itself or if it needs sometime, doesn't really matter because most other keyboards works fines for years.
