The great thing about Shar Yashuv and the Mir in NY [two very great Litvak yeshivas] is authenticity.

This is very much different from the majority of what goes on in the religious world where deception and scamming secular Jews is the rule--not the exception.

And this I think one of the major reasons for the signature of the Gra on the letter of excommunication.

The problem he saw was not just falsifying what the Torah says but scamming and conning people about it.

"Authentic" means that certain places are into learning Torah--nothing more or less. They are not claiming anything else. This is the major characteristic of Litvak yeshivas in Israel also. There is no aspect of scam that is so common place in the rest of the religious world.