GongGong13

I live in area with many street cats/ strays. Should I feed/ water them or leave them to their own devices?

I live in Korea, there are few options for non-kill shelters and TNR programs. If there were, I would follow your advice.

Do TNR cats retain the same survival skills to live outdoors? Does neutering affect their hunting skills?

My cat did that. She had fleas and the bites drove her mad. She had to be put on anti-anxiety medication. A good flea control treatment helped.