I have a personal domain and use a unique email address whenever signing up to a website, so I can easily block it if it gets leaked and starts receiving spam (it also makes it easy to know which site the leak came from). I'm only a single user but would be treated as a moderate sized company according to the new classifications.

I understand the desire to classify domains and charge different pricing for them. I also appreciate that my arrangement is somewhat unusual and that your approach no doubt works for the majority of cases, it just feels a shame that it has such an impact for a case like mine.