How many of us have more than one site? I'd bet its a high percent. How many of us would like to be able to launch more sites but haven't got round to it because its a pain having to start afresh each time. Xenforo should have multi-site capability to be able to run multiple sites from one backend. It would be revolutionary in the forum world and would also turn the market upside down, Being able to share members, and content across different sites along with conversations etc would save admins time and sell a lot more licences for xenforo. I know there is a 3rd party add on for this, but for the serious admin, to base your sites on it you'd need to be sure that it wasn't going to be abandoned etc. Wordpress has done a pretty fine job of it, and so should Xenforo.