Why is "List of rulings by Moshe Feinstein" trending?

Wikipedia Overview

The following is a list of notable halachic rulings by Rabbi Moshe Feinstein, the foremost halachic authority of the late 20th century in the United States; Responsa in Igrot Moshe are cited in parentheses.Artificial insemination from a non-Jewish donor
Ascending the Temple Mount nowadays
Cosmetic surgery
Bat Mitzvah for girls
Brain death as an indication of death under Jewish law. However, this is disputed.
Cholov Yisroel Permitted reliance on U.S. government agency supervision in ensuring that milk was reliably kosher, and it is as if Jews had personally witnessed it. This was a highly controversial ruling disputed by prominent peers of Feinstein.
Cheating for the N.Y. Regents exams
Commemorating the Holocaust, Yom ha-Shoah
Conservative Judaism, including its clergy and schools
Donating blood for pay (Permissible)
Education of girls
End-of-life medical care
Eruv projects in New York City

Hazardous medical operations
Heart transplantation
Labor union and related employment privileges
Mehitza
Mixed-seating on a subway or other public transportation
Psychiatric care, specifically talk therapy, from heretics
Separation of conjoined twins who were fused all the way from the shoulder to the pelvis and shared one heart. It is during this case that C. Everett Koop, the 13th Surgeon General of the United States, said "The ethics and morals involved in this decision are too complex for me. I believe they are too complex for you as well. Therefore I referred it to an old rabbi on the Lower East Side of New York. He is a great scholar, a saintly individual. He knows how to answer such questions. When he tells me, I too will know." (Permitted)
Shaking hands between men and women
Smoking marijuana
Tay–Sachs disease fetus abortion, esp. in debate with Eliezer Waldenberg
Smoking
Veal raised in factory conditions
Remarriage after Holocaust