You'll never please everybody, so don't waste your time. There will always be people who will take your actions negatively. Some people are very defensive about their photos (or photos of their community members, in this case). I've met many crazy mothers who made scandals over their kids'photos (taken during some public activities) posted in the internet. Not very long ago I had the pleasure of listening to a raving mother, who didn't like her own photo (taken at a school picnic) that my daughter had put in the school paper.
So just ignore him and continue writing interesting and informative travelling posts!