@Azure @alcinnz @thraeryn It's identity fatigue. People can't make themselves sign up for yet another service to keep contact with people, and they can't abandon the commercial ones because most of their non-weirdo friends and family are on them. So you're asking them to do something additional for you instead of you doing the normative thing for them.
This is from my years of effort trying to pry friends and family off of Facebook with better alternatives.