I’m gonna break it to you bud, the people you see only once a decade or so aren’t your friends. Those are shallow acquaintances that you’re letting drag on for too long. They’re not a part of your life and you’re not a part of theirs.

At most, you can call them professional contacts whom you hope to get some value out of in the future, and in that sense I’d agree — social media makes it possible to keep in touch with people whom you have a transactional relationship with.