No, it looks like there’s no way to do it. It shouldn’t be that way, though – would you mind filing an enhancement ticket at trac.buddypress.org?
Hi thecorkboard, can you tell me how to change the initial message bu hacking the core ? i cannot find where to edit it.
By Initial message, you mean the text under Create a Blog … “By filling out the form below, you can add a blog to your account. There is no limit to the number of blogs you can have, so create to your heart’s content, but blog responsibly. etc”?
You can do that without touching core file with this method: http://blog.ftwr.co.uk/archives/2010/01/02/mangling-strings-for-fun-and-profit/