MHB is what?

[symbolipoint]

I lost track of how this was introduced and a Search is getting nowhere. What does MHB stand for? Mathematics Homework Booboo? Mathematics Hope for the Best ? Something. What?

 

[Wrichik Basu]

https://www.physicsforums.com/threads/mathhelpboards-com-merges-with-pf.1044618/