There is a minimum requirement for subject password (6 chars), but there seems to be no minimum requirement for login? (so it is possible for me to create a one char -login)
Is that how it should be, or is there a mistake of some kind?

Personally, I'd like it to be coherent somehow, so my suggestion would be that either remove the minimum requirement alltogether, or make it same for both, for example 4-5 chars?