@Simon ***********
The embassy / consulate is never going to tell you about doing 90 day reporting as this is from a separate entity : immigration. When you get a visa, you don't get told by someone to do 90 day reporting if you stay 90 days or more because not everyone stays 90 days. Its just knowledge that you need to be aware of. I learned about it from my landlord because as soon as I rented she had to do a TM30 for the reporting. I agree that it would be nice to be told but not being told or claiming ignorance of the rule is not an excuse for not abiding by it.
Maybe its like getting a driving license and saying "well no one told me I couldn't drive through a stop light" lol, maybe a bad analogy but kinda similar.