As long as I know which Server to join when it begins (what is btw not the case) everything would be okay.
I think each of the Servers must have its own Thread rather than a combination Thread for all of them. Otherwise the Update Messages get messy. Also the Names in those Threads should be a bit more descriptive than "Kirara 3.0", like "Kirara Hardcore", "Kirara Classic" (with the old GT5 Mod Set) and "Kirara Magic" (with all the Magic Stuff).