I'm sure you know the reason why the Five Towns Costco was #1.
Please refrain from negative comments about your brothers and sisters. There may be chumra to refrain from certain foods on certain days. You can even respond that is not a chumra, it's halacha.
But now ask yourself, what would Hashem rather:
A) Somebody eat chalav stam and eat pas palter every day and never speak loshon hara (even about people who are not the gedolei hador) or any other aveira, or
B) Somebody keep every chumra in the book, have the most kavana and be the biggest anav, and do no aveira, except to speak loshon hara about an entire community just once in their life?
If you think the answer is B, you may want to go through the Chafetz Chaim to be sure.