Posting something done in July 2011 as “New!” is of course rather ridiculous. Since then, all websites I am involved in are safely moved to WordPress.
Initially, it was all very simple, but for communities where some kind af access control is requiered, it is not that simple, although in theory everything ever invented is available as WordPress plugins, widgets, themes or whatever.
I am still looking for the perferct WordPress forum (where there are some of course, but something more like the KISS (Keep IT Simple Stupid) principle is needed.
Something else which I keep looking for is the perfect simple login “members only” functionality, where a number of static pages “opens up” as you give your login password. Rock-solid bank encryption is not required, though.