Even among the posters here there is ittle digs toward chumros,
I cant speak for everyone, but I think many peoples’s negatively towards chumros is not the chumra, but rather the person keeping the chumra, many times they use it as some sort of holier than thou weapon.
There is a difference between quiletly going to the store and only buying chalav yisroel products, that basically only your family knows about and it, Telling the whole world what a Helig yid you are because Chalav Stam never touched your lips