Your questions might cause some bias with your sample when it comes to older individuals and higher earners. Your highest income bracket isn’t much higher than the average hourly wage.

Good points, I was oversimplifying.

Vitamin D is fat soluble, so you really shouldn’t be taking more than 100% daily value.

Pretty much the same. Conservative subreddits are pro-Israel, most other subeddits have pro-Palestinian sentiment. Haven't seen any pro-Hamas stuff.