Reply To: Yehareig V'al Yaavor?

The difference is you are asking MO rabbis. In the Chareidi world, which according to the Pew Research study less than two years ago constitute 71% of American Orthodoxy and 81% of American Orthodoxy aged 30 or younger, it is by far the mainstream to rule on this issue in line with Rav Moshe, the Chazon Ish, the Steipler, the Debretziner and the Ben Ish Chai that it is prohibited to shake hands with a woman and that it is objectively derech chiba.