Which features are that? Notice I linked to a plugin list. I like this system, it has RSS and tags default, it has a working Ignore user plugin. And more invisible: much cleaner admin UI, I think a bit cleaner plugin API (the way plugins are wired into the system), although phorum was pretty decent in that area too.
The handling of skins/themes has always been lousy in phorum (with bad mix of CSS and non-CSS formatting, for those technically inclined), it was always a hassle to upgrade from one phorum version to another, that tended to break plugins, themes. Time will show if this is better in that aspect.
About those old postings, we'll see about that one, at least they are available.
Generally it is cool to be with a WordPress product, they are among the hottest names in the trade.
And this default skin looks nice, although it breaks with the rest of the site of course. Will try to fix.
I think the next thing to do, is to redo the whole site with a more user-centric feel, more in vein of a blog/wiki, let users help maintain front page stories, get more admins. One guy said that there are too few updates, and that is a fact, I don't think people would come to this site a lot if it wasn't for the forums.
Off to play some Resistance 2 now... fine game.