Comment by purplethinking

It will take a lot to break the network effect of X, probably more so than many other platforms, because it's very detrimental to their reach (and income/revenue share) for people with a lot of followers to move. So the important people will mostly stay, and they will attract back the people who leave, we've seen this a couple of cycles. Contrast that to something like Facebook. It had large network effects too, but all it takes is a few of your best friends switching at the same time, and nobody is losing a lot of reach by leaving. So they keep posting to both, but that takes work to keep up.