[smcn]

You're not making a distinction, you're classifying it incorrectly. Containing a messaging component does not make it a messenger.

It's a social network, it clearly believes that the connections between people is the most important part of its offering. It can migrate a user and their connections.

Again, I would enjoy it if it did take posts, too, but clearly they disagree. I'm not going to say that they cannot claim it to be a migration as a result of that.