Docprof says:

Doctor Professor is the internet’s leading expert on what Doctor Professor thinks about videogames. He is also the author of Pixel Poppers, the internet’s leading blog on the same subject.

There is no evidence that he is either a doctor or a professor.

He’s called “Docprof” for short.

Senpai-chan says:

Senpai-chan is a student. She has other traits as well.