If you honestly do not understand the point the comment you are replying to is making, a better choice is asking the commenter to clarify
I believe I did:-
′ Based on what? Is Gresham’s law based on “this”?′
Asking me does not help, I did not write the comment you didn’t understand.
The point is that if no one can understand the comment, then I am not uncharitably pretending not to understand the comment:
I believe I did:-
′ Based on what? Is Gresham’s law based on “this”?′
The point is that if no one can understand the comment, then I am not uncharitably pretending not to understand the comment: