Not an answer, but maybe my thoughts could help someone figure out how to solve it..
Stacks and Stacks of culinary 2196's hometown
refers to some SE
Most famous man from there
user with the most reputation of that SE?
UPDATE: after reading the comment of Thrax the user 2196 is from Chicago, IL, therefore we might be looking for a famous person from there
depends on the users name
some sort of rot cipher? maybe caesar shifted by 4, maybe rot13..
Don't know if this is helpful but might as well share it ;)