Sure but I imagine you’d want to track real 400 errors (e.g. your POST request contains the wrong parameters) in analytics to ensure you haven’t introduced a bu

Sure but I imagine you’d want to track real 400 errors (e.g. your POST request contains the wrong parameters) in analytics to ensure you haven’t introduced a bug in your code. Categorising bot repellant responses along with that would likely be very noisy. Again I’m not really defending the practise, I think it’s bad, I can just clearly see how they ended up where they ended up.