My hunch is that people often affiliate with causes online for selfish and narcissistic purposes. Sometimes, it may be as simple as trying to impress their online friends, and once you have fashioned that identity, there is very little reason to actually do anything else.
We have a deep need to affiliate, to be around people, and no creature on earth spends as much of its life depending on others as we do
In Nigeria, Hillary Clinton amazingly fought for two years to keep an Al-Qaeda affiliate off the terrorist watch list.
It was hard for me to do the show (All-American Girl) because a lot of people didn't even understand the concept of Asian-American. I was on a morning show and the host said, "Awright, Margaret, we're changing over to an ABC affiliate! So why don't you tell our viewers in your native language that we're making that transition?" So I looked at the camera and said, "Um, they're changing over to an ABC affiliate. "