Broken link no more
Thanks for bringing this up, alcaray.
Rather than go around notifying people with links like that, I put in a redirector for "habitablezone.xxx/space" that sends it to the new forum address. I did the same thing for /Space, since Linux is case-sensitive; and for all the other forum names that existed on the old site.
When I get the old message base transferred over here, I'll expand the redirects so that the old message URLs will work again. That'll take a little ID translation magic too. But worth it because Google Webmaster tools show that there are thousands of bookmarks and links to posts.