People don't own their social media accounts, the social media companies do. I would bet that the fine print of every signup contract for a social media network would have explictly say that the social media platform has zero legal obligation to provide you services, they can cancel at any time for any reason.

No matter how valuable your username is, you are renting it without renter's rights. It's the equivalent of people building multi-million dollar businesses on land they don't own and can be kicked off of without notice or reason given.

It's even more insane that people use this for communication too and open themselves up to censorship, easedropping, governments listening. Social networks are good for connection but, relying on them and making an archive of sensative information in them is risky.

I make the initial connection in the social network for the network benefits and try to move people to better more secure and reliable channels later.