"I am not a fan of distance training unless I am going to eventually get My hands on a slave so when I do distance training, like key holding as an example"
This is basically the only way I use Twitter too as a sub.
Online domination doesn't appeal to me too much unless i'm specifically planning to session with that domme or have already sessioned with that domme, it just feels too impersonal and cold for me otherwise!

I do use Twitter to follow dommes who are known to travel and I want to session with, just to keep track of if they're planning to come to NYC or somewhere close.