I wasn't thinking of the character builds, per se, but the actual information that comprised the characters (xp, inf, level, etc). Something that could be imported elsewhere. I have my builds and costumes pretty much documented at this point. So in the event of Homecoming shutting down (god forbid), I could import my characters to a personal server without losing my progress.
I would dearly love to have the ability to do a character exports, for two reasons. First, to be able to have our own backups of our characters and second, to be able to import them back into our own private servers if the need ever arose. I can't stress how much I don't want to start over anymore.