Even once on my face when I was too slow to dodge.

This needs further explanation

you won’t have much feces clinging unless you’re really hairy

Generally the butt hole has more accumulated feces if it's a soft stool, very hairy, and ... I spent an hour on lemmy, so it's all crusted-up

Why?

Why was this downvoted?

See also The Effect of Handwashing with Water or Soap on Bacterial Contamination of Hands by Maxine Burton, Emma Cobb, Peter Donachie, Gaby Judah, Val Curtis, and Wolf-Peter Schmidt (Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine)

See also The Effect of Handwashing with Water or Soap on Bacterial Contamination of Hands by Maxine Burton, Emma Cobb, Peter Donachie, Gaby Judah, Val Curtis, and Wolf-Peter Schmidt (Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine)

people don't use their hand when using a bidet? Gross! How do they know it's clean if they don't wipe?

Does it depend on the soap? Is normal (non-antibacterial) soap sufficient in this situation?

See also The Effect of Handwashing with Water or Soap on Bacterial Contamination of Hands by Maxine Burton, Emma Cobb, Peter Donachie, Gaby Judah, Val Curtis, and Wolf-Peter Schmidt (Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine)

wait, when there's a sprayer people don’t use their hand? Gross! How do they know it’s clean of debris if they don’t even wipe it?

Also, if you spray up then that means the sprayer gets covered in poopy water. Gross!

I always aimed the sprayer at my back and wiped with my hand. It seems super rude to spray from below :(