Well that's about the best answer you'll get. I don't believe we have any of the programmers/developers of Technorati here.
So I'd suggest your options are:
Make sure your site handles both options,
Don't worry about it,
Don't bother link dropping at Technorati.
I don't really see why it matters. It will still lead to your site either way. You should still list it because Technorati is such a valuable backlink to have.
as you , want to claim my new blog to Technorati but it removes the www from the 'Enter blog URL' input field. Strange...I am also expericing the same problem. If i make deep studyi can, figure out the problem.