It's not just snobbery. There are real and serious usability issues. When doing group communication between an iPhone and a group member who is in Android user. The entire group chat gets downgraded to SMS, which means a lot of messages don't get through the way they were intended, and images and videos are so downgraded as to be unusable. The people that I know personally who are affected by this, it has nothing to do with snobbery and everything to do with pragmatism. People on iPhone will only use iMessage in the United States. It's stupid, it's absurd, it's self-inflicted, but ultimately it is what it is and all the advocacy of moving to something else is not moving the needle.