I remember early Flickr. It was *interesting* and attracted new users like a magnet. Same for early Twitter and early Facebook.

Remember Google Plus? Died on the vine. Orkut? Caught on in Brazil for some reason, nowhere else. Ello, "the Facebook killer"? It was very pretty and artsy. Also very dead.

No amount of convincing can make users stay with a platform. You may convince them to try it, but unless it is *INTERESTING* to them, they will not stick around.