Ignore the other person; they're trolling. There are a wealth of martial arts programs in the Boston metro area that get students psyched about learning - and teach you how to actually fight - without belittling their students.

(I echo knowthyself's recommendation for Theodorou Academy (http://bostonselfdefense.com/), having studied and taught there for over 9 years. It's a short walk from the #71 bus out of Harvard, if that helps)