I use #gnusocial because it is what I like. The accesibility is pretty much perfect for people using screen readers, and @mmn is quick to fix any #a11y problems. but I certainly don't have any problem with any other service. I mean we're all in this together right? Lol Everything should federate with everything else. Friendship should know no borders. Now, if only we could get this concept through to the people running Twitter and Facebook, maybe they could learn to federate too. >:-)}