My uni was not rich enough to have an email server for students.

So, I did not have a uni mail address.

That was required.

Somewhat. The free educational license was only acceptable for 'personal' projects, so not suitable for class work.

Surely that kind of use would have been fine. What they're trying to do with that questionnaire must be to determine if you're making money from the venture. You can share your diary with others and still call it personal, after all. (Once you get a publisher involved, not so much.)

you could install that license on one physical machine. so say you want to use a Colab or cloud GPU or something, or your university compute cluster, it wouldn’t work.