Everytime I go into the homework questions forum and look at threads started by people it always makes me laugh what threads have so many comments. In the introductory physics forum when it's a question on kinematics, there's always like 10 people that answer. As soon as there's something about magnetism, there's maybe 1 person that responds. Same goes in the calculus and beyond. When it's a simple integral like ##\int x^3dx## tons of people respond, but when it involves trig substitutions almost no one replies. Well anyway, it's just something I noticed and it makes me laugh.