Rails is a pretty popular framework and widely used. How come something like this was not caught earlier, presumably its affects all Rails applications. Why wo

Rails is a pretty popular framework and widely used. How come something like this was not caught earlier, presumably its affects all Rails applications. Why would anyone code this kind of inefficiency instead of using inbuilt constraints. Has the code been reviewed, tested? Too many questions. It's surprising given how popular Rails was and still is that something which should have been caught in the early days of Rails is discovered now years later. Aren't all the production apps seeing this? Didn't Twitter see this? The real concern is a lot of highly promoted technologies in HN do not get the proper technical scrutiny that one should take for granted in a technical forum and increasingly hype is conflated to quality.