This sad Harry Potter theory explains why Harry has so few classmates (5 Photos) By: Staff In: Mind Blowing, Movies May 28, 2016 1134 Liked! 290 Disliked 0 1 If you’re a true Harry Potter fan, no detail goes unnoticed. Also, JK Rowling never makes mistakes and there’s a brilliant reason for everything, right? For example, back in 2000 she said there were about 1,000 students enrolled at Hogwarts. Like this post? 1134 Liked! 0